Academia.edu no longer supports Internet Explorer.
To browse Academia.edu and the wider internet faster and more securely, please take a few seconds to upgrade your browser.
2020, Lankesteriana
We present a range extension for Sobralia amabilis, previously recorded from the southeastern border of Guatemala to Panama and Ecuador. Here, we detail its taxonomic history, description, and geographical distribution, along with photographs of the plants in vivo, habitat notes and recommendations for collecting and preparing herbarium specimens. Key words: cloud forest, Northern Central America, occurrence, orchid, Sobralieae
Even though the orchids of the genus Sobralia Ruiz. & Pav. represent a common element in both pristine and disturbed landscapes in the tropical region of the Americas, they are still poorly understood as to their diversity and biology. With near 200 species, the genus is widely distributed in the Neotropics with the notable exception of the West Indies, but the ephemeral and gregarious flowering of most species, and the particular delicacy of the flower tissues, make Sobralia a difficult candidate for collection and study. In the last ten years, scientists at the Lankester Garden Botanical Garden, University of Costa Rica, focused in the diversity of Sobralia, building up a large ex-situ collection with literally hundreds of specimens from Costa Rica and abroad, to circumvent the inherent difficulties of studying Sobralia with the traditional technique of pressing and drying fertile field specimens (Dressler). Thanks to this effort, the flora of Costa Rica presents today a somewhat artificial peak in Sobralia diversity, with nearly 40 recorded species, a hundred times greater than Brazil and eight times greater than orchid-rich Ecuador in terms of diversity index. Still, new species of Sobralia frequently appear among cultivated plants, and we took this opportunity to describe one here. There seem to be more plants of this puzzling species in gardens than in nature. The plants vary a good deal in both size and flower color, yet it is a very distinctive species and we feel that it must be recognized as such. The species was first brought to our attention a couple of years ago by one of the authors (MA), who was trying to give a name to a Sobralia that he could not match with any documented species. When he sent us a photograph of the flower, we had to admit that it looked quite different from any other Sobralia that we already knew. The plant had been cultivated in a garden in the town of Turrialba, and even though the owner did not remember where it came from, he was kind enough to give a part of the plant to MA, who brought it to the Lankester Botanical Garden. The plant flowered again at Lankester Garden in September 2015, and having then the opportunity to study a living flower, we could confirm that it was really distinct from the other species of Sobralia that we knew from Costa Rica. Instead of the shades of purple or bright pink, which are so common in Central American Sobralia species, the flowers of this particular specimen were of a somewhat dusty, dull rose, while at the same time having a depth reminiscent of nacre. On the same ground color, the lip presented a deep chestnut brown gorge, the color breaking down toward the apex into dense lines becoming fine rose-purple stripes on the ruffled edge of the midlobe. Surely, this was quite a novel and showy color combination. We carefully documented the plant and prepared vouchers, both dry and in alcohol, storing them under Dressler's number 7341. We were reluctant, however, to describe a new species from a plant coming from an unknown locality. In the following months, MA verified that plants of this species were indeed quite common in cultivation in the gardens of Turrialba, and he strongly suspected that the species was a native of that region. If this was the case, we hoped that, Abstract. Sobralia turrialbina is described and illustrated from Costa Rica. The new species is compared with the morphologically similar S. chrysostoma, from which can be distinguished by the leaves restricted to the terminal third of the stem, the floral bracts twice longer, the flowers dusty pink or pale rose, and the lip with no keels, provided with a hazelnut-brown gorge and the apical margin finely striped with rose-purple. Notes on species distribution, habitat and ecology, and etymology are provided. Resumen. Se describe y se ilustra Sobralia turrialbina de Costa Rica. Se compara la nueva especie con S. chrysostoma, morfológica-mente similar, de la cual puede distinguirse por las hojas distribuidas solamente en el tercio apical del tallo, la brácteas florales el doble de largo, las flores de color rosa grisáceo o rosado pálido y el labelo sin quillas, con la garganta color café-avellana y el margen apical finamente estriado de rosado-purpúreo. Se provén notas sobre la distribución, hábitat, ecología y etimología de la especie. We greatly thank Hugo Mata Díaz of Turrialba, and Alicia Arias Arias, of Venecia, who generously shared with us plants from their private gardens. All the wild plants studied and preserved for this study were obtained through scientific collection permits No. 36891 and subsequents, and the Scientific Passports No. 1281 and 1285, issued to the senior authors by the Costa Rican Ministry of Environment and Energy (MINAE) and the National System of Conservation Areas (SINAC), whose cooperation is deeply acknowledged.
International Journal on Environmental Sciences
Diversity of Pleurothallidinae in Guatemala: An Endangered Orchid Subtribe with High Economic and Horticultural Potentials2017 •
The orchid flora of Guatemala includes 1,200 species; representing 10% of the total species present in the world, demonstrating rich biodiversity. Among the orchids, the subtribe with the highest number of endangered species is Pleurothallidinae; because their species lack pseudobulbs and are plants that die during the summer from dehydration. However, plants produce flowers more than once during the year for seed generation and maintain their populations. In the neotropics this subtribe comprises 4000 species and in Guatemala 211 species and four natural hybrids in 20 genera have are recorded; distributed in wet forests and subtropical lower rainforests, at an elevation of 300-3000 m. The genera and number of species are: Lepanthes (70 species and four hybrids), Stelis (47), Specklinia (22), Platystele (15), Trichosalpinx (13),. Of these taxa, 57 species are known only from a few localities of Guatemala and 29 are restricted to the southeast Mexico and Guatemala. Hence, several species are classified as Least Concern or Near Threatened by IUCN; however, they should be categorized as Endangered due to their restricted distribution and serious anthropogenic pressure impacting local populations. The ornamental and horticultural potentials of Pleurothallidinae diversity in the fragmented forests can be harnessed in establishing a model for the sustainable management. This will help in conservation of endangered local orchid species; and in the restoration of fragmented forest areas by integrating that to the judicious economic development of impoverished local communities.
2011 •
2013 •
The idea for this book was proposed by Dr. Joseph Arditti during the 1st. International Conference on Neotropical Orchidology that was held in San José, Costa Rica, in May 2003. In its first chapters, this is without doubt a history of orchids, relating the role they played in the life of our ancient indigenous people and later in that of the Spanish conquerors, and the ornamental, medicinal and economical uses they gave to these plants. It is not until the late XVIII century, but above all in the XIX century that we can talk about a history of orchidology, with the development of botanical science and the establishment of the bases of modern orchidology by Lindley. But the XIX century was also the time of legendary commercial collectors who, frequently with the complicity of men of science, collected with a frenzy often bordering on madness. Orchid knowledge became sometimes a synonym of orchid destruction. During the second half of the XX century the world developed a growing cons...
2011 •
Revista Colombiana de Cardiología
Accidente cerebrovascular isquémico asociado con ablación por radiofrecuencia de reentrada nodal2010 •
Revista Mexicana de Ciencias Pecuarias
Temperaturas cardinales de desarrollo en la etapa siembra emergencia de 11 pastos forrajeros2011 •
Beni-Suef University Journal of Basic and Applied Sciences
Costus root extract improves testicular toxicity of Bisphenol A in adult male albino rats: histopathological, ultrastructural and biochemical studies2022 •
2006 •
Bulletin of the History of Medicine
The Sacrificial Body and the Day of Doom: Alchemy and Apocalyptic Discourse in the Protestant Reformation (review)2009 •
2021 •
Journal of Risk and Financial Management
Systemic Approach to Management Control through Determining Factors2018 •
2017 •
the Journal of Academic Social Sciences
Gap'In Önemi̇ Ve Bölgesel Kalkinmada Adiyaman'In Yeri̇2018 •
Investigações em Ensino de Ciências
Declarações De Monitores e Ex-Monitores Do Observatório Do Alto Da Sé Sobre a Atividade De Monitoria: Desdobramentos Para a Futura Ação Docente2018 •
Contemporary Sociology: A Journal of Reviews
Formal and Informal Work: The Hidden Work Regime in Europe2010 •
Journal of Allergy and Clinical Immunology
Albuterol treatment for children with asthma: A comparison of inhaled powder and aerosol1989 •
Journal of Clinical Investigation
Eosinophils generate brominating oxidants in allergen-induced asthma2000 •
2021 •
International Conference on Systems
Modeling subbands of a wavelet based scalable video codec2005 •
Gazdaság és Pénzügy
A hazai pénzügyi kultúra fejlesztésének aktuális feladatai2022 •
New Journal of Physics
4D texture of circular dichroism in soft-x-ray photoemission from tungsten2018 •
2020 •