Orchids of New Guinea

Species

Next Genus: Genus Dendrobium section Aporum subsection Aporum

Genus Dendrobium

Genus Dendrobium Sw., Nova Acta Regiae Soc. Sci. Upsal. 6 (1799) 82, nom. cons. Conserved type species: Dendrobium moniliforme (L.) Sw. (basionym: Epidendrum moniliforme L.).

Synonyms:

Genus Abaxianthus (Schltr.) M.A.Clem. & D.L.Jones, Orchadian 13 (2002) 485. Type species: Abaxianthus convexus (Blume) M.A.Clem. & D.L.Jones (basionym: Desmotrichum convexum Blume).
Genus Aclinia Griff., Notul. Pl. Asiat. 3 (1851) 320. Type species: Dendrobium aclinia Lindl., nom. illeg., non Rchb.f.
Genus Amblyanthe Rauschert, Feddes Repert. 94 (1983) 436. Type species: Amblyanthe melanosticta (Schltr.) Rauschert (basionym: Dendrobium melanostictum Schltr.).
Genus Amblyanthus (Schltr.) Brieger in Schltr., Orchideen ed. 3, 1 (1981) 686, nom. illeg., non A.DC. Type species: Amblyanthus melanostictus (Schltr.) Brieger (basionym: Dendrobuim melanostictum Schltr.).
Genus Anisopetala (Kränzl.) M.A.Clem., Telopea, 10 (2003) 283. Type species: Anisopetala mutabilis (Blume) M.A.Clem. (basionym: Dendrobium mutabile Blume).
Genus Anisopetala (Kränzl.) M.A.Clem., Telopea, 10 (2003) 283. Type species: Anisopetala mutabilis (Blume) M.A.Clem. (basionym: Dendrobium mutabile Blume).
Genus Aporopsis (Schltr.) M.A.Clem. & D.L.Jones, Orchadian 13 (2002) 485 Type species: Aporopsis macfarlanei (F.Muell.) M.A.Clem. & D.L.Jones (basionym: Dendrobium macfarlanei F.Muell.).
Genus Aporum (Blume) Blume, Bijdr. (18 25) 334. Type species: Aporum lobatum Blume.
Genus Australorchis Brieger in Schltr., Orchideen ed. 3, 1 (1981) 741. Type species: Australorchis monophylla (F.Muell.) Brieger (basionym: Dendrobium monophyllum F.Muell.).
Genus Bolbodium (Lindl.) Brieger in Schltr., Orchideen ed. 3, 1 (1981) 721, as 'Bolbidium' (not Bolbidium (Lindl.) Lindl.). Type species: Bolbodium pusillum (Blume) Rauschert (basionym: Desmotrichum pusillum Blume).
Genus Bouletia M.A. Clem. & D.L.Jones, Orchadian 13 (2002) 485. Type species: Bouleita ftnetiana (Schltr.) M.A.Clem. & D.L.Jones (basionym: Dendrobiumfinetianum Schltr. ).
Genus Cadetia Gaudich . in Freyc., Voy. Bol. (1826) 422, t. 33. Type species: Cadetia umbellata Gaudich.
Genus Callista Lour., Fl. Cochinch. 2 (1790) 519. Type species: Callsita amabilis Lour.
Genus Cannaeorchis M.A.Clem. & D.L.Jones, Lasianthera, 1 (1997) 132. Type species: Cannaeorchis fractiflexa (Finet) M.A.Clem. & D.L.Jones (basionym: Dendrobium fractiflexum Finet).
Genus Cepobaculum M.A.Clem. & D.L.Jones, Orchadian 13 (2002) 486. Type species: Cepobaculum canaliculatum (R.Br.) M.A.Clem. & D.L.Jones (basionym: Dendrobium canaliculatum R.Br.).
Genus Ceraia Lour., Fl. Cochinch. 2 (1790) 518. Type species: Ceraia simplicissima Lour.
Genus Ceratobium (LindJ.) M.A.Clem. & D.L.Jones, Orchadian 13 (2002) 486. Type species: Ceratobium antennatum (LindJ.) M.A.Clem. & D.L.Jones (basionym: Dendrobium antennatum Lindl.).
Genus Coelandria Fitzg., Austral. Orchids 1 (7) (1882) t. 2. Type species: Coelandria smillieae (F.Muell.) Fitzg. (basionym: Dendrobium smillieae F.Muell.).
Genus Conostalix (Kränzl.) Brieger in Schltr., Orchideen ed. 3, 1 (1981) 659. Type species: Conostalix calcarata Brieger (basionym: Dendrobium calcaratum Lindl., nom . illeg., non A.Rich.).
Genus Chromatotriccum M.A.Clem. & D.L.Jones, Orchadian 13 493 (2002). Type species: Chromatotriccum lawesii (F.Muell.) M.A.Clem. & D.L.Jones (basionym: Dendrobium lawesii F.Muell.).
Genus Davejonesia M.A.Clem., Orchadian 13 (2002) 487. Type species: Davejonesia lichenastrum (F.Muell.) M.A.Clem. (basionym: Bulbophyllum lichenastrum F.Muell.).
Genus Dendrobates M.A.Clem. & D.L.Jones, Orchadian 13 (2002) 487. Type species: Dendrobates virotzi (Guillaumin) M.A.Clem. & D.L.Jones (basionym: Dendrobiutn virotii Guillaumin).
Genus Dendrocoryne (Lindl.) Brieger in Schltr., Orchideen ed. 3, 1 (1981) 724 nom. inval. Type species: XXXXXXXX
Genus Dendrorkis Thouars, Nouv. Bull. Sci. Soc. Philom. Paris 19 (1809) 314, nom. superfl.
Genus Desmotrichum (Blume) Blume, Bijdr. (1825) 329, nom. rej., not Desmotrichum Kutz. Type species: Desmotrichum angulatum Blume .
Genus Dichopus Blume, Mus. Bot. Lugd. Bat. 2 (1856) 176. Type species: Dichopus insignis Blume.
Genus Diplocaulobium (Rchb.f.) Kränzl. in Engl., Pftanzenr., IV 50. II. B. 21 (1910) 331. Type species: Diplocaulobium nitidissimum (Rchb.f.) Kränzl. (basionym: Dendrobium nitidissimum Rchb. f.).
Genus Distichorchis M.A.Clem. & D.L.Jones, Orchadian 13 (2002) 487. Type species: Distichorchis revoluta (Lindl.) M.A.Clem. & D.L.Jones (basionym: Dendrobium revolutum Lindl.).
Genus Ditulima Raf., Fl. Tellur. 4 (1836, publ. 1838) 41. Type species: Ditulima anceps (Sw.) Raf. (basionym: Dendrobium anceps Sw.).
Genus Dockrillia Brieger in Schltr., Orchideen ed. 3, 1 (1981) 745.Type species: Dockrillia linguiformis (Sw.) Brieger (basionym: Dendrobium linguiforme Sw.).
Genus Dolichocentrum (Schltr.) Brieger in Schltr., Orchideen ed. 3, 1 (1981) 659. Type species: XXXXXXXX
Genus Durabaculum M.A.Clem. & D.L.Jones, Orchadian 13 (2002) 487, nom. illeg. Type species: Durabaculum undulatum (R.Br.) M.A.Clem . & D.L.Jones (basionym: Dendrobium undulatum R.Br.).
Genus Eleutheroglossum (Schltr.) M.A.Clem. & D.L.Jones, Orchadian 13 (2002) 489. Type species: Dendrobium eleutheroglossum Schltr.
Genus Endeisa Raf., Fl. Tellur. 2 (1836, publ. 1837) 51. Type species: Endeisa flava Raf., nom. illeg. (basionym: Dendrobium densiflorum Wall. ex Lindl.).
Genus Ephemerantha P.F.Hunt & Summerh., Taxon 10 (1961) 102. Type species: Ephemerantha angulata (Blume) P.F.Hunt & Summerh . (basionym: Desmotrichum angulatum Blume).
Genus Epigeneium Gagnep., Bull. Mus. Hist. Nat. Paris, sér. 2, 4 (1932) 593. Type species: Epigeneium fargesii (Finet) Gagnep. (basionym: Dendrobium fargesii Finet).
Genus Eriopexis (Schltr.) Brieger in Schltr., Orchideen ed. 3, 1 (1981) 656. Type species: Eriopexis schlechteri Brieger (basionym: Dendrobium eriopexis Schltr.).
Genus Euphlebium (Kränzl.) Brieger in Schltr., Orchideen ed. 3, 1 (1981) 722. Type species: Euphlebium spurium (Blume) Brieger (basionym: Dendrocolla spuria Blume).
Genus Eurycaulis M.A.Clem. & D.L.Jones, Orchadian 13 (2002) 490. Type species: Eurycaulis lamellatus (Blume) M.A.Clem. & D.L.Jones (basionym: Onychium lamellatum (Blume) LindJ.).
Genus Exochanthus M.A.Clem. & D.L.Jones, Orchadian 13 (2002) 496. Type species: Exochanthus pleianthum (Schltr.) M.A.Clem. & D.L.Jones (basionym: Dendrobium pleianthum Schltr.).
Genus Flickingeria A.D.Hawkes, Orquidea 27 (1961) 301. Type species: Flickingeria angulata (Blume) A.D.Hawkes (basionym: Desmotrichum angulatum Blume).
Genus Froscula Raf., Fl. Tellur. 4 (1836, publ. 1838) 44. Type species: Froscula hispida Raf., nom. illeg. (basionym: Dendrobium longicornu Lindl.).
Genus Gersinia Néraud in Freyc., Voy. Uranie, 27 (1826). Type species: Not designated (no species have as yet been assigned to Gersinia).
Genus Goldschmidtia Dammer, Orchis 4 (1910) 86, nom. invalid. Type species: Goldschmidtia gracilis Dammer.
Genus Grastidium (Blume) Blume, Bijdr. (1825) 333. Type species: Grastidium salaccense Blume.
Genus Herpethophytum (Schltr.) Brieger in Schltr., Orchideen ed. 3, 1 (1981) 660. Type species: Herpethophytum schlechteri Rauschert (basionym: Dendrobium herpetophytum Schltr.).
Genus Inobulbum (Schltr.) Kränzl. in Engl., Pflanzenr., IV. 50. II. B. 21 (1910) 316, as ‘lnobulbon’ Schltr. & Kränzl.; Schlechter (1912) did not accept lnobulbum as a genus and therefore should not be considered co-author. Type species: Inobulbum muricatum (Finet) Kränzl. (basionym: Dendrobium
Genus Katharinea A.D.Hawkes, Lloydia 19 (1956) 94. Type species: Katharinea ampla (Lindl.) A.D.Hawkes (basionym: Dendrobium amplum Lindl.).
Genus Keranthus Lour. ex Endl., Gen. Pl. (1836) 193 (in syn.)
Genus Kinetochilus (Schltr.) Brieger in Schltr., Orchideen ed. 3, 1 (1981) 686. Type species: Kinetochilus pectinatus (Finet) Brieger (basionym: Dendrobium pectinatum Finet).
Genus Latouria Blume, Rumphia 4 (1848) 41, t. 195, 199, nom . illeg., non (Endl.) Lindl. Type species: Latouria spectabilis Blume.
Genus Latourorchis Brieger in Schltr., Orchideen, ed. 3, 1 (1981) 727. Type species: Latourorchis spectabilis (Blume) Brieger (basionym: Latouria spectabilis Blume).
Genus Leioanthum M.A.Clem. & D.L.Jones, Orchadian 13 (2002) 490. Type species: Leioanthum bifalce (LindJ.) M.A.Clem. & D.L.Jones (basionym: Dendrobium bifalce Lindl.).
Genus Maccraithea M.A.Clem. & D.L.Jones, Orchadian 13 (2002) 496. Type species: Maccraithea cuthbertsonii (F.Muell.) M.A.Clem. & D.L.Jones (basionym: Dendrobium cuthbertsonii F.Muell.).
Genus Macrostomium (Blume) Blume, Bijdr. (1825) 335. Type species: Macrostomium aloifolium Blume.
Genus Microphytanthe (Schltr.) Brieger in Schltr., Orchideen ed. 3, 1 (1981) 742. Type species: Microphytanthe bulbophylloides (Schltr.) Brieger (basionym: Dendrobium bulbophylloides Schltr.).
Genus Monanthos (Schltr.) Brieger in Schltr., Orchideen ed. 3, 1 (1981) 660, as 'Monanthus'. Type species: Monanthos bilobus (Schltr.) Brieger (basionym: Dendrobium bilobum LindJ.).
Genus Onychium (Blume) Blume, Bijdr. (1825) 323. Type species: Ornychium japonicum Blume.
Genus Ormostema Raf., Fl. Tellur. 4 (1836, publ. 1838) 38. Type species: Ormostema purpurea Raf., nom. illeg. (basionym: Epidendrum moniliforme L.).
Genus Orthoglottis Breda, Gen. Sp. Orchid Asclep., fasc. 4 (1830) s. n. Type species: Orthoglottis imbricata Breda.
Genus Oxyglossellum M.A.Clem. & D.L.Jones, Orchadian 13 (2002) 490. Type species: Oxyglossellum cyanocentrum (Schltr.) M.A.Clem. & D.L.Jones (basionym: Dendrobium cyanocentrum Schltr.).
Genus Pedilonum (Blume) Blume, Bijdr. (1825) 320. Type species: Pedilonum secundum Blume.
Genus Pierardia Raf., Fl. Tellur. 4 (1836, publ. 1838) 41. Type species: Pierardia bicofor Raf., nom. illeg. (basionym: Dendrobium pierardii Roxb.).
Genus Sarcocadetia (Schltr.) M.A.Clem. & D.L.Jones, Orchadian 13 (2002) 490. Type species: Sarcocadetia funiformis (Blume) M.A.Clem. & D.L.Jones (basionym: Dendrobium funiforme Blume).
Genus Sarcopodium Lindl., Paxt. Flow. Gard. 1 (1850) 155, nom. illeg., non Ehrenb. ex Brogn. Type species: Sarcopodium amplum (Lindl.) Lindl. & Paxt. (basionym: Dendrobium amplum Lindl.).
Genus Sayeria Kränzl., Oesterr. Bot. Zeitschr. 44 (1894) 298. Type species: Sayeria paradoxa Kränzl.
Genus Schismoceras C.Presl, Rel. Haenk. 1 (1827) 96, t. 13, fig. 2. Type species: Schismoceras disticha C.Presl.
Genus Stachyobium Rchb.f., Gard. Chron. (1869) 785. Type species: XXXXXXXX
Genus Stellophyllum M.A.Clem. & D.L.Jones, Orchadian 13 (2002) 490. Type species: Stellophyllum toressae (FM.Bailey) M.A.Clem. & D.L.Jones (basionym: Dendrobium toressae FM.Bailey).
Genus Tetrabaculum M.A.Clem.& D.L.Jones, Orchadian 13 (2002) 490. Type species: Tetrabaculum tetragonum (A.Cunn.) M.A.Clem. & D.L.Jones (basionym: Dendrobium tetragonum A.Cunn.).
Genus Tetrodon (Kränzl.) M.A.Clem. & D.L.Jones, Orchadian 12 (1998) 310. Type species: Tetrodon oppositifolium (Kränzl.) M.A.Clem. & D.L.Jones (basionym: Eria oppositifolia Kränzl.).
Genus Thelychiton Endl., Prodr. Fl. Norf. (1833) 32. Type species: Thelychiton macropus Endl.
Genus Thicuania Raf., Fl. Tellur. 4 (1836, publ. 1838) 47. Type species: Thicuania moschata (Buch.-Ham.) Raf. (basionym: Epidendrum moschatum Buch. Ham.).
Genus Trachyrhizum (Schltr.) Brieger in Schltr., Orchideen ed. 3, 1 (1981) 687. Type species: Trachyrhizum schlechteri Brieger (basionym: Dendrobium trachyrhizum Schltr.).
Genus Tropilis Raf., Fl. Tellur. 2 (1836, publ. 1837) 95. Type species: Tropilis aemula (R.Br.) Raf., as 'emulum' (basionym: Dendrobium aemufum R.Br.).
Genus Vappodes M.A.Clem. & D.L.Jones, Orchadian 13 492 (2002.) Type species: Vappodes bigibba (LindJ.) M.A.Clem. & D.L.Jones (basionym: Dendrobium bigibbum LindJ.).
Genus Winika M.A.Clem., D.L.Jones & Molloy, Orchadian 12 (1997) 214. Type species: Winika cunninghamii (Lindl.) M.A.Clem., D.L.Jones & Molloy (basionym: Dendrobium cunninghamii Lindl.).

Epiphytes, lithophytes or terrestrials very small to large, sympodial (shoots sometimes with continuous apical growth). Roots terete, glabrous or papillose-warty. Rhizomes short to elongated. Stems glabrous or with indument, cane-like or pseudobulb-like; when cane-like elongated, slender, fleshy or not, branching or not, long-lived, many-leaved, not covered or or partly entirely covered by leaf sheaths; when pseudobulb-like with 1 to many internodes, short and thick to much elongated and slender, with 1 to many leaves. Leaves arranged in two rows; base sheathing or not, sheath tubular or not, sometimes hairy (hairs blackish or white, yellow or red-brown); blade usually articulate and deciduous, conduplicate, dorsoventrally flattened, sometimes terete or laterally compressed, leathery or sometimes stiffly thin-textured, rarely hairy. Inflorescence lateral from the upper part of the stem or terminal, a raceme or carrying a single flower, 1-flowered or racemose, rarely paniculate, sometimes fasciculate. Flowers very small to large, resupinate or not, long-lived or ephemeral, often showy, sometimes fragrant. Median sepal free, rarely connate to the lateral sepals. Lateral sepals usually connate at the base, similar or dissimilar to the median sepal; mentum distinct, sometimes resembling a spur. Petals extremely variable in shape, entire, free, more or less similar to the median sepal, but in many species (e.g. most species of section Spatulata) very different in size and shape. Lip either adnate to the margins of the column foot, or rigidly attached to the apex of the column foot (breaks off when bent downwards), or flexibly attached (remains attached when bent downwards), or rarely hinged and highly mobile, usually not mobile, entire or lobed, with or without keels and/or callosities, not spurred but often forming a spur-like structure with the column foot. Column usually straight, without lateral wings, rarely with apical stelidia; column foot well-developed, usually longer than the column, often apically with a more or less shallow concave area; stigma concave, sometimes raised and callus-like; rostellum simple or sometimes 2-lobed, usually swollen into a cavity containing a sticky liquid which dries into a soft, putty-like substance; often with a downwards projecting, rigid, truncate or emarginate lamella between rostellum and stigma (the 'scraper'). Pedicel and ovary terete or winged, sometimes papillose or hairy. Fruit 1-locular, ellipsoid, oblong, obovoid to subglobose, sometimes winged or triangular in cross-section, usually opening along three longitudinal slits, sometimes with a single opening near the apex; without endocarpic elaters.

Distribution:

Sri Lanka, tropical continental Asia, Taiwan, Japan, Malaysia, Singapore, Brunei, the Philippines, Indonesia, Papua New Guinea, Australia, New Zealand, Pacific islands, east to Tahiti. About 1450 species; in New Guinea c. 560 species.

Habitat:

Epiphytes in lowland and montane forest. Some species are terrestrial in swampy places with sparse vegetation, in subalpine grassland, or on road banks, others grow on rocks and cliffs, but of the latter category most can also be found as epiphytes.

Classification:

Family Orchidaceae
Subfamily Epidendroideae
Tribe Dendrobieae
Genus Dendrobium

Literature:

Brieger, F.G. 1981. Dendrobiinae. In Schlechter, Die Orchideen, ed. 3, I/A: 636-752.
Clements, M.A. and D.L. Jones. 1997. A preliminary taxonomic review of Grastidium Blume and Eriopexis (Schltr.) Brieger (Orchidaceae). Lasianthera 1: 52-198.
Cribb, P., T. Reeve, and P. Woods. 1985. The genus Dendrobium in New Guinea. Kew Mag. 2: 291-308.
Cribb, P.J. 1983. A revision of Dendrobium section Latouria (Orchidaceae). Kew Bull. 38: 229-306.
Cribb, P.J. 1986. A revision of Dendrobium section Spatulata (Orchidaceae). Kew Bull. 41: 615-692.
Dauncey, E.A. 1994. Towards a taxonomic revision of Dendrobium Sw. section Pedilonum Blume (Orchidaceae). Ph.D. thesis, University of Reading, U.K.
Kraenzlin, F. 1910. Orchidaceae-Monandrae-Dendrobiinae I. In: A. Engler, Das Pflanzenreich, IV.50.II.B.21.
Lavarack, B., W. Harris & G. Stocker. 2000. Dendrobium and its relatives. Timber Press, Portland, Oregon.
Morris, M.W., W.L. Stern, and W.S. Judd. 1996. Vegetative anatomy and systematics of subtribe Dendrobiinae (Orchidaceae). Bot. J. Linn. Soc. 120: 89-144.
O'Byrne, P. 1994. Lowland orchids of Papua New Guinea. SNP Publishers, Singapore.
Reeve, T.M. and J.J. Wood. 1982. Three confused species of Dendrobium section Pedilonum from New Guinea and the Moluccas. Orchadian 7: 113-118.
Reeve, T.M. and P.J.B. Woods. 1989 (publ. 1990). A revision of Dendrobium section Oxyglossum (Orchidaceae). Notes Roy. Bot. Gard. Edinburgh 46: 161-305.
Reeve, T.M. 1983. A revision of Dendrobium section Microphytanthe. Orchadian 7: 203-206.
Reeve, T.M. 1990. New Guinea Orchidaceae: a synopsis of the genus Dendrobium. Proceedings 1st Australasian Native Orchid Society Conference and Show, pp. 53-63.
van Royen, P. 1979. Orchidaceae. The Alpine Flora of New Guinea 2: 51-811.
Schlechter, R. 1905. Microspermae. In Schumann, K. and K. Lauterbach, Nachträge zur Flora der Deutschen Schutzgebiete in der Südsee. pp. 69-234, pl. III-XII.
Schlechter, R. 1911-1914. Die Orchidaceen von Deutsch-Neu-Guinea. Rep. Spec. Nov. Regni Veg. Beih. 1: 1-1079.
Schlechter, R. 1923 & 1928. Figurenatlas zu den Orchidaceen von Deutsch-Neu-Guinea. Rep. Spec. Nov. Regni Veg. Beih. 21 (1 & 2).
Schlechter, R. 1982. The Orchidaceae of German New Guinea, incorporating the figure atlas to the above. The Australian Orchid Foundation, Melbourne.
(English translation of Schlechter 1911-1914)
Seidenfaden, G. 1985. Orchid genera in Thailand. XII. Dendrobium Sw. Op. Bot. 83: 1-295.
Smith, J.J. 1909. Die Orchideen von Niederländisch-Neu-Guinea. Nova Guinea 8(1): 1-148.
Smith, J.J. 1911. Die Orchideen von Niederländisch-Neu-Guinea. Nova Guinea 8(3): 521-611.
Smith, J.J. 1913. Die Orchideen von Niederländisch-Neu-Guinea. Nova Guinea 12(1): 1-108.
Smith, J.J. 1915 & 1916. Die Orchideen von Niederländisch-Neu-Guinea. Nova Guinea 12(3): 173-272 & 12(4): 273-477.
Smith, J.J. 1929. Orchidaceae. Nova Guinea 14(3): 337-516.
Smith, J.J. 1935. Orchidaceae. Nova Guinea 18(1): 9-85.
Spence, P.J. 1997. Notes on selected species of Dendrobium sect. Latouria. Lasianthera 1: 153-172.
van Bodegom, J. 1973. Enige orchideeën van West Nieuw Guinea. Technische Hogeschool Twente.
Yukawa, T. and K. Uehara. 1996. Vegetative diversification and radiation in subtribe Dendrobiinae (Orchidaceae): evidence from chloroplast DNA phylogeny and anatomical characters. Pl. Syst. Evol. 201: 1-14.
Yukawa, T., S. Kurita, M. Nishida, and M. Hasebe. 1993. Phylogenetic implications of chloroplast DNA restriction site variation in subtribe Dendrobiinae (Orchidaceae). Lindleyana 8: 211-221.
Yukawa, T., H. Ohba, K. M. Cameron, and M.W. Chase. 1996. Chloroplast DNA phylogeny of subtribe Dendrobiinae (Orchidaceae): Insights from a combined analysis based on rbcL sequences and restriction site variation. J. Plant Res. 109: 169-176.

Notes:

From a horticultural point of view Dendrobium is by far the most important orchid genus in New Guinea. Next to Bulbophyllum it is also one of the largest. The genus is divided into more than 40 sections, of which 22 occur in New Guinea. In New Guinea the showy species belong predominantly to the sections Latouria (e.g. Dendrobium spectabile (Blume) Miq.), Spatulata (e.g. Dendrobium lasianthera ), Phalaenanthe (Dendrobium bigibbum) and Calyptrochilus (e.g. Dendrobium smillieae F.Muell., Dendrobium lawesii F.Muell. and Dendrobium cuthbertsonii F.Muell.). The countless millions of dendrobiums produced by the cut flower industry in Thailand and Singapore, adorning every hotel and restaurant in Southeast Asia are hybrids of species originating from New Guinea and Australia, belonging to sections Phalaenanthe and Spatulata.

Systematics (IN PREPARATION)
Most of the sections of Dendrobium are quite distinct. Regrettably, in New Guinea the popular sections Pedilonum, Calyptrochilus and Oxyglossum, which contain several of the most charming orchids of New Guinea, have proved to be exceptions to this rule; we had to conclude that they can not be separated in a consistent way from section Calyptrochilus. Moreover, during the preparations for the database it was found that several sectional names in current use are synonyms of older, previously discarded names.

The following 22 sections and 4 subsections are known to occur in New Guinea (commonly used synonym names in brackets)

section Amblyanthus
section Aporum
section Aporum subsection Aporum
section Aporum subsection Crumenata
section Aporum subsection Strongyle
section Biloba
section Brevisaccata (Trachyrhizum)
section Cadetia
section Calyptrochilus (including Calyptrochilus, Oxyglossum, Cuthbertsonia and most species of Pedilonum )
section Conostalix
Crinifera (Flickingeria)
Crumenata (Rhopalanthe)
Dendrobium
Diplocaulobium
Diplocaulobium sect. Diplocaulobium
Diplocaulobium sect. Cadetioides (ined.)
Diplocaulobium sect. Goniobulbon
Diplocaulobium sect. Mekynosepalum (ined.)
Distichophyllae (Distichophyllum)
Fugacia (Euphlebium)
Grastidium
Herpetophytum
Latouria
Microphytanthe
Oxystophyllum
Pedilonum
Phalaenanthe (Bigibba)
Pleianthe
Rhizobium (genus Dockrillia)
Spatulata

Artificial key to the Sections of the Genus Dendrobium in New Guinea

1a. Shoot 1-leaved. Inflorescence 1-flowered (sometimes several inflorescences together in a fascicle) == 2.
1b. Shoot with 2 or more leaves, or inflorescence with 2 flowers or more == 9.

2a. Stems or pseudobulbs composed of more than 1 internode == 3.
2b. Stems or pseudobulbs composed of 1 internode ==5.

3a. Pseudobulbs widely spaced along a creeping or erect rhizome == Dendrobium sect. Crinifera.
3b Pseudobulbs close together. Rhizome not creeping == 4.

4a. Pseudobulbs quadrangular in cross-section. Lip attached to the column foot. Flowers lasting less than 1 day == Dendrobium sect. Fugacia.
4b. Pseudobulbs rounded in cross-section. Lip immobile attached to the column foot. Flowers lasting more than 1 day == Dendrobium sect. Latouria.

5a. Lip with 2 or more keels that extend from its base to at least halfway the lip == 6.
5b. Lip without such keels from the base, unadorned or with calli near the middle of the lip == 8.

6a. Inflorescences from a (usually yellow) spathe at the apex of the pseudobulb == Dendrobium sect. Diplocaulobium.
6b. Inflorescences from the apex of the pseudobulb or from the top part of the stem, but not from a spathe ==7.

7a. Leaves fleshy, terete, or if flat, without a distinct midnerve == Dendrobium sect. Rhizobium.
7b. Leaves not fleshy, not terete, with a distinct midnerve == Dendrobium sect. Crinifera.

8a. Lip with the basal part closely appressed to and adnate to the column foot. Column in front pubescent. Mentum often spur-like == Dendrobium sect. Cadeta.
8b. Lip with the basal part turned away from and mobile on the column foot. Column in front glabrous. Mentum not spur-like. == Dendrobium sect. Microphytanthe.

9a. Stem or pseudobulb at the apex 1- or 2-leaved. Leaves without a tubular leaf sheath == 10.
9b. Stem or pseudobulb with more than two leaves, or leaves with a tubular sheath == 15.

10a. Leaves terete, or fleshy and bilaterally flattened == Dendrobium sect. Rhizobium.
10b. Leaves dorsoventrally flattened ==11.

11a. Rhizome elongate ==.Dendrobium sect. Calyptrochilus
11b. Rhizome short == 12.

12a. Pseudobulbs oblong or ovoid to broadly conical, not narrowed in the basal part == Dendrobium sect. Latouria.
12b. Pseudobulbs narrowly cylindrical, or with a narrowed basal part, spherical, or spindle-shaped to club-shaped == 13.

13a. Column foot much shorter than the column. Lip mobile. Flowers lasting less than 1 day ==.Dendrobium sect. Fugacia.
13b. Column foot about as long as or longer than the column. Lip not mobile. Flowers lasting either less than 1 day or longer than 1 day == 14.

14a. Lip at the base adnate to the column foot. Inflorescence 1-flowered. Flowers lasting less than 1 day == Dendrobium sect Aporum.
14b. Lip attached to the apex of the column foot. Inflorescence 1- to many-flowered. Flowers lasting more than 1 day == Dendrobium sect. Latouria.

15a. Leaves laterally flattened == Dendrobium sect. Aporum.
15b. Leaves dorsoventrally flattened or terete to needle-shaped == 16.

16a. Leaves terete to needle-shaped == 17.
16b. Leaves flat == 20.

17a. Leaf sheaths covered with blackish or dark brown hairs, at least during development == Dendrobium sect. Conostalix.
17b. Leaf sheaths glabrous ==18.

18. Stems much shorter than the leaves, fleshy == Dendrobium sect. Pedilonum (D. hellwigianum).
18. Stems with a few abruptly swollen internodes at the base, or stems elongate, much longer than the leaves, not fleshy == 19.

19a. Inflorescence at the base subtended by laterally flattened scale leaves that persist for a long time after the flowers have dropped, 1- or 2-flowered; if 2-flowered the flowers placed at the same level on top of the peduncle Column foot much shorter than the median sepal. Stems cane-like, the internodes never swollen == Dendrobium sect. Grastidium.
19b. Inflorescence at the base with a few tight, tubular scales that wither away soon after flowering, 1-flowered. Column foot as long as or longer than the median sepal. Stem with or without swollen internodes at the base == Dendrobium sect. Aporum.

20a. Stem slender, with a few of the lower, leafless internodes abruptly swollen above the base == Dendrobium sect. Aporum.
20b. Stem either swollen throughout (sometimes with thinner branches) or slender throughout, or with the upper internodes swollen == 21.

21a. Leaf sheaths densely covered with short, blackish or dark brown hairs, at least when developing == Dendrobium sect. Conostalix.
21b. Leaf sheaths, if present, glabrous, or with white hairs, or with long hairs along margin only, or with scattered brownish scale hairs == 22.

22a. Leaves without a tubular leaf sheath == 23.
22b. At least the lowermost leaf with a tubular leaf sheath ==25.

23a. Column foot much shorter than the column. Lip mobile. Flowers lasting less than 1 day == Dendrobium sect. Fugacia.
23b. Column foot about as long as or longer than the column. Lip not mobile. Flowers lasting more than 1 day== 24.

24a. Lip entire, on upper side finely pubescent == Dendrobium sect. Dendrobium.
24b. Lip entire or 3-lobed, aon upper side entirely or for the larger part glabrous == Dendrobium sect. Latouria.

25a. Stems fleshy or not, short or elongate; if not fleshy each stem has limited apical growth (older stems have clearly ceased growing), often becoming leafless after one or two growing seasons. Flowers mainly produced on stems of the current or previous growing season ==26.
25b. Stems not fleshy, elongate, with seemingly unlimited apical growth, with even thickness all over its length, not becoming completely leafless after a few growing seasons. Flowers produced on both recent and old stems ==38.

26a. Mentum in lateral view 2-lobed. The petals are broader than the sepals == Dendrobium sect. Phalaenanthe.
26b. Mentum not 2-lobed in lateral view or, if 2-lobed, the petals are not broader than the sepals == 27.

27a. Free part of the lip with two or more lamellate keels; or with a single longitudinal callus extending from the base to halfway the lip or beyond == 28.
27b. Free part of the lip without keels or long basal callus; or with keels or calli starting well above the base of free part of the lip; or with a short basal callus not reaching the middle ==31.

28a. Inflorescences short, few-flowered, laterally on leafless stems of the previous growing season. Lip with a single longitudinal keel == Dendrobium sect. Dendrobium.
28b. Inflorescences elongate, or, if short, on leafy stems. Lip with 1 to multiple keels ==29.

29a. Inflorescences short, 1- or few flowered. Leaves not deciduous after the first growing season == Dendrobium sect. Distichophyllae.
29b. Inflorescences elongate; or, if short and few-flowered, the leaves are deciduous after the first growing season == 30.

30a. Basal callus bulging backwards over the claw of the lip. Roots smooth or warty ==.Dendrobium sect. Brevisaccata.
30b. Lip not with a backward-projecting basal callus. Roots smooth == Dendrobium sect. Spatulata.

31a. Leaf sheaths and usually also the outer surfaces of the sepals with scattered, appressed, brown scale-hairs. Lip with a thin, flat, usually lobed or fringed appendage at the base == Dendrobium sect. Amblyanthus.
31b. Leaf sheaths glabrous or with long hairs. Outer surfaces of the sepals glabrous, papillose or with long patent hairs. Lip without appendage or with a thick, callus-like appendage at the base == 32.

32a. Mentum shorter than the median sepal; or, if longer, mentum broad and chin-like. Lip not adnate to the column foot; upper surface of the lip often finely and densely pubescent. Roots glabrous == Dendrobium sect. Dendrobium.
32b. Mentum about as long as the median sepal or longer, not broad and chin-like but spur-like or conical; or, if mentum shorter than the median sepal, then the lip is adnate to the column foot; upper surface of the lip not finely and densely pubescent. Roots glabrous or warty == 33.

33a. Inflorescence sympodially branching (check also the remains of older inflorescences), producing one flower at a time == Dendrobium sect. Brevisaccata (Dendrobium viridiflorum).
33b. Inflorescence not branching, 1- to many-flowered == 34.

34a. Roots rough or warty. Stems sometimes laterally flattened == Dendrobium sect. Pedilonum.
34b. Roots smooth. Stems not laterally flattened ==35.

35a. Lip with distinct lateral lobes or entire; if entire, the midlobe is warty and distinctly more fleshy than the sepals and petals. Inflorescence short. Flowers white, green or brown, not brightly coloured == Dendrobium sect. Distichophyllae.
35b. Lip entire, not warty, not more fleshy than the sepals and petals. Inflorescence short or elongate. Flowers usually brightly coloured, less often white, green or ochrish-brown == 36.

36. Stems not fleshy; or, if fleshy, the ovary has wings or papillae; or lip apex inflexed == Dendrobium sect. Calyptrochilus.
36. Stems distinctly fleshy. Ovary terete and smooth. Lip apex not inflexed ==37.

37a. Species occurring west of Sulawesi, not including the Philippines; also including Dendrobium secundum, Dendrobium amethystoglossum, and Dendrobium hasseltii from Sulawesi, the Philippines and farther east == Dendrobium sect. Pedilonum.
37b. Species occurring in Sulawesi and farther east, including the Philippines; not including Dendrobium secundum,Dendrobium amethyystoglossum, and Dendrobium hasseltii == Dendrobium sect. Calyptrochilus.

38a. Inflorescence a cluster of many, almost sessile flowers that breaks through the leaf sheath == Dendrobium sect. Pleianthe.
38b. Inflorescence 1- or few-flowered, or a raceme ==39.

39a. Lip with a long, narrow claw. Mentum usually spur-like due to the adnate lateral sepals, often partly closed in front == 40.
39b. Lip not with a long, narrow claw; the basal part rectangular or cuneate. Mentum broad, chin-like, open in front, with free lateral sepals == 41.

40. Inflorescence -1 flowered. Lip with a callus or longitudinal keels in the centre of the blade. Flower not resupinate == Dendrobium sect. Herpethophytum.
40. Inflorescence 1- to many-flowered. Lip without a callus or keels on the blade, sometimes with a short, V-shaped callus or a horizontal ridge on claw. Flowers resupinate or not == Dendrobium sect. Calyptrochilus.

41a. Inflorescence at the base subtended by laterally flattened scale leaves that persist for a long time after the flowers have dropped, 1- or 2-flowered, if 2-flowered the flowers placed at the same level on top of the peduncle == Dendrobium sect. Grastidium.
41b. Inflorescence not subtended by persistent scales, 1- to many-flowered; if 2-flowered the flowers placed at different levels on the rachis == 42.

42a. Inflorescence 1-flowered; peduncle largely covered by scales. Flowers not resupinate == Dendrobium sect. Biloba.
42b. Inflorescence 1- to many-flowered; peduncle largely exposed. Flowers resupinate == Dendrobium sect. Brevisaccata.

Genus Dendrobium in New Guinea contains XXX species:
(IN PREPARATION, species of sections Cadetia, Crinonia and Diplocaulobium need to be included)

Dendrobium aberrans
Dendrobium acanthephippiiflorum
Dendrobium acianthum
Dendrobium acuiferum
Dendrobium acuminatissimum
Dendrobium acutilobum
Dendrobium aethalodes
Dendrobium affine
Dendrobium agrostophylloides
Dendrobium alaticaulinum
Dendrobium alexandrae
Dendrobium aloifolium
Dendrobium alticola
Dendrobium amiengense
Dendrobium amphigenyum
Dendrobium andersonianum
Dendrobium andreemillariae
Dendrobium angiense
Dendrobium angusticaule
Dendrobium angustiflorum
Dendrobium angustitepalum
Dendrobium angustipetalum
Dendrobium angustispathum
Dendrobium anosmum
Dendrobium antennatum
Dendrobium apertum
Dendrobium appendicula
Dendrobium appendiculoides
Dendrobium araneum
Dendrobium archipelagense
Dendrobium aridum
Dendrobium aries
Dendrobium aristiferum
Dendrobium armeniacum
Dendrobium armitiae
Dendrobium aromaticum
Dendrobium asperatum
Dendrobium atropurpureum
Dendrobium atroviolaceum
Dendrobium aurantiroseum
Dendrobium austrocaledonicum
Dendrobium awormangae
Dendrobium axillare
Dendrobium azureum
Dendrobium baeuerlenii
Dendrobium bambusiforme
Dendrobium bambusinum
Dendrobium beleense
Dendrobium bicristatum
Dendrobium bifalce
Dendrobium bigibbum
Dendrobium bilobum
Dendrobium biloculare
Dendrobium bipulvinatum
Dendrobium bismarckiense
Dendrobium bobolei
Dendrobium boridiense
Dendrobium brachycalyptra
Dendrobium brachycentrum
Dendrobium bracteosum
Dendrobium branderhorstii
Dendrobium brassii
Dendrobium brevicaule
Dendrobium brevilabium
Dendrobium brillianum
Dendrobium brinkmanii
Dendrobium brunnescens
Dendrobium buffumii
Dendrobium bulbophylloides
Dendrobium burkeanum
Dendrobium cadetiiflorum
Dendrobium caladenia
Dendrobium calcaratum
Dendrobium calcaratum subsp. papillatum
Dendrobium caliculimentum
Dendrobium calyptratum
Dendrobium canaliculatum
Dendrobium capituliflorum
Dendrobium carronii
Dendrobium caudiculatum
Dendrobium cavipes
Dendrobium centrosepalum
Dendrobium ceraceum
Dendrobium chalmersii
Dendrobium chordiforme
Dendrobium chrysopterum
Dendrobium chrysosema
Dendrobium clausum
Dendrobium clavuligerum
Dendrobium cleistanthum
Dendrobium cochleatum
Dendrobium cochlioides
Dendrobium codonosepalum
Dendrobium coelandria
Dendrobium coeloglossum
Dendrobium coloratum
Dendrobium conanthum
Dendrobium conicum
Dendrobium constrictum
Dendrobium contextum
Dendrobium convexipes
Dendrobium convolutum
Dendrobium correllianum
Dendrobium corticicola
Dendrobium crassiflorum
Dendrobium crassilabium
Dendrobium crassinervium
Dendrobium crenatifolium
Dendrobium crenatilabre
Dendrobium crispilinguum
Dendrobium cruttwellii
Dendrobium cuculliferum
Dendrobium cultrifolium
Dendrobium curvimentum
Dendrobium curvisepalum
Dendrobium cuthbertsonii
Dendrobium cyanocentrum
Dendrobium cyanopterum
Dendrobium cyclolobum
Dendrobium cylindricum
Dendrobium cyrtolobum
Dendrobium cynthiae
Dendrobium cyrtosepalum
Dendrobium debile
Dendrobium decumbens
Dendrobium dekockii
Dendrobium delicatulum
Dendrobium dendrocolloides
Dendrobium devosianum
Dendrobium diceras
Dendrobium dichaeoides
Dendrobium dichroma
Dendrobium dielsianum
Dendrobium dillonianum
Dendrobium dionaeoides
Dendrobium discerptum
Dendrobium discolor
Dendrobium disoides
Dendrobium dissitifolium
Dendrobium djamuense
Dendrobium dockrillii
Dendrobium dolichocaulon
Dendrobium doreyanum
Dendrobium dulce
Dendrobium eboracense
Dendrobium elatum
Dendrobium engae
Dendrobium erectifolium
Dendrobium erectopatens
Dendrobium erectum
Dendrobium eriopexis
Dendrobium erosum
Dendrobium erubescens
Dendrobium erythraeum
Dendrobium eumelinum
Dendrobium euryanthum
Dendrobium exaltatum
Dendrobium exasperatum
Dendrobium eximium
Dendrobium extraaxillare
Dendrobium eymanum
Dendrobium falcatum
Dendrobium falcipetalum
Dendrobium ferdinandi
Dendrobium finisterrae
Dendrobium fissum
Dendrobium flagellum
Dendrobium flammula
Dendrobium flebiliflorum
Dendrobium forbesii
Dendrobium fractum
Dendrobium fruticicola
Dendrobium fulgescens
Dendrobium fulgidum
Dendrobium fulgidum subsp. maritimum
Dendrobium fuligineum
Dendrobium fuliginosum
Dendrobium furfuriferum
Dendrobium fusciflorum
Dendrobium funiforme
Dendrobium gatiense
Dendrobium geotropum
Dendrobium gibbosum
Dendrobium giriwoense
Dendrobium gjellerupii
Dendrobium glaucoviride
Dendrobium glebulosum
Dendrobium globiflorum
Dendrobium glossorhynchoides
Dendrobium gobiense
Dendrobium goilalae
Dendrobium goldfinchii
Dendrobium goodallianum
Dendrobium gouldii
Dendrobium govidjoae
Dendrobium grossum
Dendrobium habbemense
Dendrobium hamadryas
Dendrobium hamiferum
Dendrobium hansmeyerense
Dendrobium hartleyi
Dendrobium hasseltii
Dendrobium hastilabium
Dendrobium helix
Dendrobium hellerianum
Dendrobium hellwigianum
Dendrobium hentyanum
Dendrobium herpetophytum
Dendrobium heteroglossum
Dendrobium hippocrepiferum
Dendrobium hodgkinsonii
Dendrobium hoftii
Dendrobium hollandianum
Dendrobium holochilum
Dendrobium horstii
Dendrobium hosei
Dendrobium humboldtense
Dendrobium hymenocentrum
Dendrobium igneum
Dendrobium imbricatum
Dendrobium inconspicuum
Dendrobium incumbens
Dendrobium incurvatum
Dendrobium informe
Dendrobium infractum
Dendrobium ingratum
Dendrobium insigne
Dendrobium integrum
Dendrobium irinae
Dendrobium isochiloides
Dendrobium iteratum
Dendrobium jabiense
Dendrobium jennyanum
Dendrobium johannis
Dendrobium johnsoniae
Dendrobium juncoideum
Dendrobium juniperinum
Dendrobium kanchianum
Dendrobium kaniense
Dendrobium katherinae
Dendrobium kauldorumii
Dendrobium kempterianum
Dendrobium keytsianum
Dendrobium klossii
Dendrobium kosterianum
Dendrobium laceratum
Dendrobium lacteum
Dendrobium laevifolium
Dendrobium lamii
Dendrobium lamproglossum
Dendrobium lanceolatum
Dendrobium lancifolium
Dendrobium lancilabium
Dendrobium lasianthera
Dendrobium latelabellatum
Dendrobium latipetalum
Dendrobium lawesii
Dendrobium leporinum
Dendrobium leptophyton
Dendrobium leucocyanum
Dendrobium leucohybos
Dendrobium limpidum
Dendrobium limpidum subsp. daunceyae
Dendrobium lineale
Dendrobium litorale
Dendrobium lobbii
Dendrobium loesenerianum
Dendrobium longicaule
Dendrobium longissimum
Dendrobium macfarlanei
Dendrobium macrifolium
Dendrobium macrogenion
Dendrobium macrophyllum
Dendrobium macrum
Dendrobium magistratus
Dendrobium malacanthum
Dendrobium margaretiae
Dendrobium masarangense
Dendrobium matapense
Dendrobium mayandyi
Dendrobium melanostictum
Dendrobium melanotrichum
Dendrobium melinanthum
Dendrobium meliodorum
Dendrobium millarae
Dendrobium minimiflorum
Dendrobium mirbelianum
Dendrobium misoanum
Dendrobium montedeakinense
Dendrobium montissellae
Dendrobium montisyulei
Dendrobium multifolium
Dendrobium multistriatum
Dendrobium mussauense
Dendrobium nardoides
Dendrobium navicula
Dendrobium nebularum
Dendrobium neoguineense
Dendrobium nephrolepidis
Dendrobium neuroglossum
Dendrobium nigricans
Dendrobium nimium
Dendrobium nindii
Dendrobium nitidiflorum
Dendrobium niveopurpureum
Dendrobium njongense
Dendrobium nothofageti
Dendrobium nothofagicola
Dendrobium nubigenum
Dendrobium nummularia
Dendrobium obcuneatum
Dendrobium obliquum
Dendrobium obovatum
Dendrobium obscureauriculatum
Dendrobium obtusum
Dendrobium ochranthum
Dendrobium odoardii
Dendrobium odontopus
Dendrobium oreodoxa
Dendrobium ostrinum
Dendrobium otaguroanum
Dendrobium oxychilum
Dendrobium pachystele
Dendrobium pachythrix
Dendrobium pantherinum
Dendrobium papilioniferum
Dendrobium papuanum
Dendrobium papyraceum
Dendrobium paragnomus
Dendrobium parvifolium
Dendrobium parvilobum
Dendrobium parvulum
Dendrobium paspalifolium
Dendrobium patentissimum
Dendrobium patulum
Dendrobium pentapterum
Dendrobium perlongum
Dendrobium petiolatum
Dendrobium phaeanthum
Dendrobium piestocaulon
Dendrobium planicaule
Dendrobium planum
Dendrobium platybasis
Dendrobium platygastrium
Dendrobium pleianthum
Dendrobium pleiostachyum
Dendrobium pleurodes
Dendrobium plumilobum
Dendrobium podocarpifolium
Dendrobium podochiloides
Dendrobium polyphyllum
Dendrobium polyrhopalon
Dendrobium polyschistum
Dendrobium polysema
Dendrobium poneroides
Dendrobium potamophilum
Dendrobium procerum
Dendrobium prostheciglossum
Dendrobium pruinosum
Dendrobium pseudocalceolum
Dendrobium pseudoglomeratum
Dendrobium pseudopeloricum
Dendrobium pulleanum
Dendrobium pulvinatum
Dendrobium punamense
Dendrobium puniceum
Dendrobium purpureiflorum
Dendrobium putnamii
Dendrobium quadriferum
Dendrobium quinquecaudatum
Dendrobium quinquedentatum
Dendrobium quinquelobatum
Dendrobium rariflorum
Dendrobium rarum
Dendrobium recurvilabre
Dendrobium rhabdoglossum
Dendrobium rhodostictum
Dendrobium rhytidothece
Dendrobium rigidifolium
Dendrobium rigidum
Dendrobium riparium
Dendrobium roseicolor
Dendrobium roseipes
Dendrobium roseoflavidum
Dendrobium rubropictum
Dendrobium rugulosum
Dendrobium rupestre
Dendrobium rutriferum
Dendrobium salicifolium
Dendrobium salmoneum
Dendrobium sarcophyllum
Dendrobium schulleri
Dendrobium schwartzkopfianum
Dendrobium schweinfurthianum
Dendrobium scopula
Dendrobium secundum
Dendrobium serratipetalum
Dendrobium setosum
Dendrobium shiraishii
Dendrobium shramii
Dendrobium simplex
Dendrobium smillieae
Dendrobium soriense
Dendrobium spectabile
Dendrobium spenceanum
Dendrobium sphenochilum
Dendrobium spiculatum
Dendrobium spinuliferum
Dendrobium squamiferum
Dendrobium steinii
Dendrobium stenophyllum
Dendrobium stictanthum
Dendrobium stipiticola
Dendrobium stockeri
Dendrobium stolleanum
Dendrobium stratiotes
Dendrobium straussianum
Dendrobium strepsiceros
Dendrobium striatiflorum
Dendrobium subacaule
Dendrobium subbilobatum
Dendrobium subclausum
Dendrobium subelobatum
Dendrobium subpetiolatum
Dendrobium subquadratum
Dendrobium subserratum
Dendrobium subsessile
Dendrobium subtricostatum
Dendrobium subuliferum
Dendrobium sulphureum
Dendrobium summerhayesianum
Dendrobium sylvanum
Dendrobium tampangii
Dendrobium tangerinum
Dendrobium tapiniense
Dendrobium terrestre
Dendrobium torricellense
Dendrobium torricellianum
Dendrobium trachythece
Dendrobium triangulum
Dendrobium trichosepalum
Dendrobium trichostomum
Dendrobium tridentiferum
Dendrobium trigonellodorum
Dendrobium trilamellatum
Dendrobium triste
Dendrobium tubiflorum
Dendrobium tumoriferum
Dendrobium uliginosum
Dendrobium uncipes
Dendrobium undatialatum
Dendrobium vagabundum
Dendrobium vanderwateri
Dendrobium vandoides
Dendrobium vannouhuysii
Dendrobium vernicosum
Dendrobium verruciflorum
Dendrobium vesiculosum
Dendrobium vestigiiferum
Dendrobium vexillarius
Dendrobium vinosum
Dendrobium violaceoflavens
Dendrobium violaceopictum
Dendrobium violaceum
Dendrobium viridiflorum
Dendrobium vonroemeri
Dendrobium wentianum
Dendrobium williamsianum
Dendrobium wisselense
Dendrobium wolterianum
Dendrobium womersleyi
Dendrobium woodsii
Dendrobium wulaiense
Dendrobium x fleischeri
Dendrobium x leeanum
Dendrobium x schumannianum
Dendrobium x vonpaulsenianum
Dendrobium x yengiliense
Dendrobium xanthogenium
Dendrobium xanthomeson
Dendrobium xanthothece
Dendrobium xylophyllum
Dendrobium yondaliae