10TH ANNIVERSARY ISSUE Check List the journal of biodiversity data Check List 11(1): 1536, January 2015 doi: http://dx.doi.org/10.15560/11.1.1536 ISSN 1809-127X © 2015 Check List and Authors NOTES ON GEOGRAPHIC DISTRIBUTION Agrostis lenis (Poaceae: Pooideae: Poeae): rediscovery of a rare and presumably extinct species in São Paulo state, Brazil Rodrigo S. Rodrigues* and Tarciso S. Filgueiras Instituto de Botânica, Núcleo de Pesquisa Curadoria do Herbário, Caixa Postal 68041, São Paulo, SP, Brazil * Corresponding author. E-mail: rosaro_3588@yahoo.com.br Abstract: he grass Agrostis lenis Roseng., Arrill. & Izag., a presumably extinct species in São Paulo state, was recollected in that state after a gap of 89 years. his species is considered rare and threatened in São Paulo. Notes on its distribution in Southeastern Brazil, images and a short description are given. glabrous; ligule membranous, erose; blades linear, 4–10(–15) × 0.2–0.6(–1) cm, and glabrous; panicle open with pedicels glabrous to minutely scabrous; spikelets 1.5–2 mm long, 1-lowered, bisexual; callus of the anthecium glabrous; glumes 2, sub-equal, muticous, 1-nerved, lower glume nerve scabrous, upper glume nerve smooth to minutely scabrous; lemma glabrous, 5-nerved, muticous; palea reduced. In Brazil, the distribution of A. lenis extends from the states of Minas Gerais and Rio de Janeiro to Rio Grande do Sul (Longhi-Wagner 2001, 2014; Filgueiras et al. 2013; Dalmolim and Zanin 2014). According to data gathered from virtual herbaria (Herbário Virtual da Flora do Brasil, http://www.loradobrasil.jbrj.gov.br/ jabot/herbarioVirtual, and SpeciesLink, http://www.splink.org. br), in the state of Rio de Janeiro, this species is known from several locations in the Itatiaia National Park. Itatiaia National Park is located at the southernmost portion of the states of Rio de Janeiro and Minas Gerais, near the border of São Paulo state, along the Mantiqueira mountain range, in altitudes varying from 600–2,791 m above sea level (a.s.l.) (ICMBIO 2014), which seems to be the northernmost limit of the species in Brazil. Key words: conservation, grasses, montane grasslands, red list, Southeastern Brazil 1.5 mm Agrostis L. includes ca. 220 species (Longhi-Wagner 2001), most of them from temperate montane grasslands of both hemispheres, and with few species occurring in low altitude grasslands. In Brazil, there occur six species (Longhi-Wagner 2014), three of which are included in the Brazilian Flora Red List (Filgueiras et al. 2013). Agrostis lenis Roseng., Arrill. & Izag. (Figures 1 and 2) is a South American endemic and threatened species recorded for Argentina, Bolivia, Brazil, Chile, and Uruguay (Soreng et al. 2003). Morphologically it can be described as delicate, annual, with semi-decumbent to decumbent culms, 15–50 cm long; nodes glabrous, the lower ones usually rooting; sheath a b d c Figure 1. Agrostis lenis. a. Spikelet, lower and upper glumes enclosing the anthecium. b. Spikelet, lower and upper glumes opened and exposing part of the anthecium. c. Spikelet, anthecium detached (see callus glabrous). d. Caryopsis. [based on S.A. Nicolau s.n. (SP454554)]. Photos: R.S. Rodrigues. Check List | www.biotaxa.org/cl 1 Volume 11 | Number 1 | Article 1536 Rodrigues and Filgueiras | Rediscovery of Agrostis lenis (Poaceae) in São Paulo state, Brazil Figure 2. Agrostis lenis. Inlorescence. [based on S.A. Nicolau s.n. (SP454554)]. Photo: R.S. Rodrigues. We found two records of A. lenis from Minas Gerais (cf. selected materials examined), one from Camanducaia and the other from Delim Moreira, both in high altitude grassy ields, near the border of the state of São Paulo. In São Paulo state, A. lenis was known only from two collections gathered in the environs of Campos do Jordão, in the same year, by the same collector (1925, A. Chase). his is probably the reason why this species was classiied as presumably extinct in the state of São Paulo by Mamede et al. (2007). However, recent ieldwork in the Serra da Bocaina State Park revealed that the species still occurs in São Paulo. his park extends from the south of Rio de Janeiro to the eastern portion of São Paulo, in altitudes varying from sea level to 2,000 m (ICMBIO 2014). he Mantiqueira and Bocaina mountain ranges probably represent the entire distribution range of the species in Southeastern Brazil (Figure 3). Based on this recent rediscovery at Serra da Bocaina State Park, the reevaluation of the conservation status of A. lenis in São Paulo state is necessary; therefore, we suggest it to be classiied as vulnerable (VU), following the IUCN criteria applied for this species by Filgueiras et al. (2013). Examined material: Brazil. São Paulo: Campos do Jordão, Serra da Mantiqueira, May 1925, A. Chase 9828 (NY, SP); same locality, same date, A. Chase 9915 (NY). Serra da Bocaina, Parque Estadual da Serra da Bocaina, April 2014, S.A. Nicolau s.n. (SP454554). Additional selected material: Brazil. Minas Gerais: Camanducaia, Monte Verde, aloramento da Pedra do Selado, 28 June 2001, L.D. Meireles and R. Belinello 325 (UEC). Delim Moreira, Fazenda Boa Esperança, trilha dos Romeiros, 19 March 2011, T.E. Almeida et al. 2930 (BHCB). Rio de Janeiro: Itatiaia, Parque Nacional do Itatiaia, planalto próximo ao Topo das Prateleiras, 24 January 1996, J.M.A. Braga 3208 (RB). Itatiaia, Parque Nacional, Maciço das Prateleiras (Pedra de Maçã), April 2000, K.T. Ribeiro 278 (ICN); same locality, Check List | www.biotaxa.org/cl Figure 3. Distribution of Agrostis lenis in Southeastern Brazil. ●: previous known distribution. : new record for the state of São Paulo. same date, K.T. Ribeiro 283 (ICN). Itatiaia, Parque Nacional do Itatiaia, Abrigo Rebouças, February 2002, R. Moura 361 (ICN). Acronyms of cited herbaria follow hiers (2014). ACKNOWLEDGMENTS We would like to thank Instituto de Botânica for the physical support to our research on the grass lora of São Paulo state. We also thank the curators of the cited herbaria, and Sueli A. Nicolau for making available to us her collection of the newly collected specimen of Agrostis lenis, and to Otávio L. Marques for the preparation of the map. LITERATURE CITED Dalmolim, E.B. and A. Zanin. 2014. Agrostis (Poaceae); in: Catálogo das Espécies de Plantas Vasculares e Brióitas do Estado do Rio de Janeiro. Rio de Janeiro: Instituto de Pesquisa Jardim Botânico 2 Volume 11 | Number 1 | Article 1536 Rodrigues and Filgueiras | Rediscovery of Agrostis lenis (Poaceae) in São Paulo state, Brazil Botânica. 165 pp. Soreng, R.J., P.M. Peterson, G. Davidse, E.J. Judziewicz, F.O. Zuloaga, T.S. Filgueiras and O. Morrone. 2003. Catalogue of New World grasses (Poaceae): IV. Subfamily Pooideae. Contributions from the United States National Herbarium 48: 1–730. hiers, B. 2014 [continuously updated]. Index Herbariorum: A Global Directory of Public Herbaria and Associated Staf. New York Botanical Garden’s Virtual Herbarium. Electronic database. Accessible at http://sweetgum.nybg.org/ih/. Captured on 8 December 2014. do Rio de Janeiro. Accessible at http://lorariojaneiro.jbrj.gov.br/ consulta.php. Captured on 8 December 2014. Filgueiras, T.S., R.P. Oliveira, J.C. Sfair, N.P. Monteiro and R.A.X Borges. 2013. Poaceae; pp. 858–881, in: G. Martinelli and M.A. Moraes (orgs.). Livro Vermelho da Flora do Brasil. Rio de Janeiro: Instituto de Pesquisa Jardim Botânico do Rio de Janeiro. ICMBIO. 2014. Instituto Chico Mendes MMA. Accessible at http:// www.icmbio.gov.br/parnaitatiaia/. Captured on 28 May 2014. Longhi-Wagner, H.M. 2001. Subfamília Pooideae; pp. 248–267, in: M.G.L. Wandrley, G.J. Sheperd and A.M. Giulietti (coords.). Poaceae—Flora Fanerogâmica do Estado de São Paulo. Vol. 1. São Paulo: FAPESP/Hucitec. Longhi-Wagner, H.M. 2014. Agrostis; in: Lista de Espécies da Flora do Brasil. Jardim Botânico do Rio de Janeiro. Accessible at http:// loradobrasil.jbrj.gov.br/jabot/loradobrasil/FB12947. Captured on 17 May 2014. Mamede, M.C.H., V.C. Souza, J. Prado, F. Barros, M.G.L. Wanderley and J.G. Rando (eds.). 2007. Livro Vermelho das Espécies Vegetais Ameaçadas do Estado de São Paulo. São Paulo: Instituto de Check List | www.biotaxa.org/cl Authors’ contribution statement: RSR and TSF identiied the new cited specimen for São Paulo state, reviewed the collections and the distribution range of the species, wrote and reviewed the manuscript; RSR prepared the igures, except the map. Received: July 2014 Accepted: December 2014 Editorial responsibility: Rubens Luiz Coelho 3 Volume 11 | Number 1 | Article 1536