Summary
Elaphoglossum matogrossense, a new species from central-western Brazil, is here described and illustrated. It belongs to Elaphoglossum section Lepidoglossa, which is often characterised by conspicuously scaly leaves and non-subulate scales with acicular, one-celled, non-glandular teeth. The new species was first collected c. 35 years ago. It is characterised by short-creeping stems, orangish to brown stem scales, moderately to densely scaly leaves, short petioles, and narrowly elliptic to oblanceolate laminae with round apices and gradually decurrent bases. Elaphoglossum matogrossense is known only from the Chapada dos Guimarães National Park and is here considered critically endangered. We provide a description, taxonomic and ecological comments, conservation status assessment, geographic distribution, phenology, and illustrations for this new species.
Resumo
Elaphoglossum matogrossense, uma nova espécie do centro-oeste do Brasil, é aqui descrita e ilustrada. Pertence à Elaphoglossum seção Lepidoglossa, a qual geralmente é caracterizada por folhas conspicuamente escamosas e escamas não-subuladas, com dentes aciculares, unicelulares, e eglandulares. A nova espécie foi coletada primeiramente há ca. 35 anos. Caracteriza-se por caules curto-reptantes, escamas do caule alaranjadas a marrons, folhas moderamente a densamente escamosas, pecíolos curtos, e laminas estreitamente elípticas a oblongas com apices arredondados e bases decurrentes. Elaphoglossum matogrossense é conhecida apenas do Parque Nacional da Chapada dos Guimarães, e é aqui considerada criticamente ameaçada. Nós apresentamos uma descrição, comentários taxonômicos e ecológicos, avaliação do status de conservação, ditribuição geográfica, fenologia, e ilustrações para esta nova espécie.
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Acknowledgements
We thank the curators of BHCB, CESJ, COR, HUFU, UEC and UPCB for making their specimens accessible to our study. Special thanks to Alexandre Salino, who kindly hosted Fernando Matos during a visit to BHCB, Vinicius Dittrich, who kindly sent us an image of Novelino 611 from CESJ, and Maria Salete Marchioretto, who kindly sent us an image of Windisch 7716 from PACA. The photo of the type locality of Elaphoglossum matogrossense (Fig. 1A) was taken by Robert L. Dona, and is used here under the Creative Commons Attribution-Share Alike 3.0 Unported license (https://commons.wikimedia.org/wiki/File:Chapada_Guimaraes_Véu_da_Noiva.jpg). The line drawing (Fig. 2) was made by the famous fern artist Haruto Fukuda, when Fernando Matos was about to finish his Ph.D. studies in New York.
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Matos, F.B., Vasco, A. Elaphoglossum matogrossense (Dryopteridaceae), a new and threatened species from Chapada dos Guimarães, Mato Grosso, Brazil. Kew Bull 77, 721–728 (2022). https://doi.org/10.1007/s12225-022-10043-2
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DOI: https://doi.org/10.1007/s12225-022-10043-2