Abstract
We describe and illustrate a new orchid species, Microchilus dasilvae, belonging to the Goodyerinae subtribe, found in the Atlantic Forest Domain of southeastern Brazil in an ecotonal region between Dense Ombrophilous Forest and Semideciduous Seasonal Forest. The species has an affinity with Microchilus decorus and Microchilus metallescens. It differs by the lip with a trilobed, yellow mesochile with acute lateral lobes, and by the broad-ovate epichile, about the same width as the mesochile when flattened.
References
<p>Barbosa Rodrigues, J. (1877) <em>Genera et species Orchidacearum novarum I</em>. Sebastianopolis, Rio de Janeiro. Typografia Nacional. 214 pp.</p>
<p>Barbosa Rodrigues, J. (1882) <em>Genera et species Orchidacearum novarum II</em>. Sebastianopolis, Rio de Janeiro. Typografia Nacional. 295 pp.</p>
<p>BFG (2015) Growing knowledge: an overview of Seed Plant diversity in Brazil. <em>Rodriguésia</em> 69: 1513–1527. https://doi.org/10.1590/2175-7860201566411</p>
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<p>BFG (2021) Brazilian Flora 2020: Leveraging the power of a collaborative scientific network. <em>Taxon</em> 71: 178–198. https://doi.org/10.1002/tax.12640</p>
<p>Bona, C.B., Engels, M.E., Pieczak, F.S. & Smidt, E.C (2020) Comparative vegetative anatomy of Neotropical Goodyerinae Klotzsch (Orchidaceae Juss.: Orchidoideae Lindl.). <em>Acta Botanica Brasilica </em>34: 530–539. https://doi.org/10.1590/0102-33062020abb0032</p>
<p>Cogniaux, A. (1896) Orchidacaeae I.<em> In: </em>Martius, C.F.P. (Ed.) <em>Flora Brasiliensis</em> VIII, Part 4, third reprint 1989. At Shiva offset press, Dehra Dun. 672 pp.</p>
<p>Engels, M.E, Barros, F. & Smidt, E.C. (2016) A subtribo Goodyerinae (Orchidaceae: Orchidoideae) no estado do Paraná, Brasil. <em>Rodriguésia</em> 67: 917–952. https://doi.org/10.1590/2175-7860201667406</p>
<p>Fidalgo, O. & Bononi, V.L.R. (1989) <em>Técnicas de coleta, preservação e herborização de material botânico</em>. Reimpressão. Instituto de Botânica, São Paulo, 62 pp.</p>
<p>Garay, L.A. (1977) Systematics of the Physurinae (Orchidaceae) in the New World. <em>Bradea</em> 28: 191–204.</p>
<p>Hoehne, F.C. (1945) <em>Flora Brasílica</em> Fasc. 8, Vol. 12, 2. Graphicars-F. Lanzara, São Paulo. 389 pp.</p>
<p>IUCN (2017) <em>Guidelines for using the IUCN red list categories and criteria.</em> Version 12. Prepared by the standards and petitions subcommittee. IUCN, Gland, Cambridge. Available from: https://portals.iucn.org/library/sites/library/files/documents/RL2001-001-2nd.pdf (accessed 29 January 2022)</p>
<p>Klotzsch, J.F. (1846) <em>Getreue Darstellung und Beschreibung der in der Arzneykunde Gebrauchlichen Gewachse</em>. Vol. 14. pl. 24.</p>
<p>Meneguzzo, T.E.C. (2012) Mudanças nomenclaturais em Goodyerinae do Novo Mundo (Orchidaceae). <em>Orquidário</em> 26: 86–91.</p>
<p>Meneguzzo, T.E.C. (2020a) <em>Aspidogyne</em> <em>in</em> Flora do Brasil 2020. Jardim Botânico do Rio de Janeiro. Available from: http://floradobrasil.jbrj.gov.br/reflora/floradobrasil/FB37213 (access 29 January 2022)</p>
<p>Meneguzzo, T.E.C. (2020b) <em>Microchilus in</em> Flora do Brasil 2020. Jardim Botânico do Rio de Janeiro. Available from: http://floradobrasil.jbrj.gov.br/reflora/floradobrasil/FB11843 (access 29 January 2022)</p>
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<p>Ormerod, P. (2005) Studies of Neotropical Goodyerinae (Orchidaceae). <em>Harvard Papers in Botany</em> 9: 391–423.</p>
<p>Ormerod, P. (2007) Studies of Neotropical Goodyerinae (Orchidaceae) 2. <em>Harvard Papers in Botany </em>11: 145–177. https://doi.org/ 10.3100/1043-4534</p>
<p>Ormerod, P. (2008) Studies of Neotropical Goodyerinae (Orchidaceae) 3. <em>Harvard Papers in Botany </em>13: 55–87. https://doi.org/ 10.3100/1043-4534</p>
<p>Ormerod, P. (2009) Studies of Neotropical Goodyerinae (Orchidaceae) 4. <em>Harvard Papers in Botany</em> 14: 111–128. https://doi.org/10.3100/025.014.0203</p>
<p>Ormerod, P. (2013) Studies of Neotropical Goodyerinae (Orchidaceae) 5. <em>Harvard Papers in Botany </em>18: 51–60. https://doi.org/ 10.3100/025.018.0108</p>
<p>Pabst, G.F.J. & Dungs, F. (1975) <em>Orchidaceae Brasilienses</em> I. Kurt Schmersow, Hildesheim, 408 pp.</p>
<p>Pieczak, F.S., Smidt, E.C., Engels, M.E., Machado, R.G.P. & Bona, C. (2022) Floral micromorphology and anatomical diversity in <em>Microchilus</em> (Orchidaceae: Goodyerinae). <em>Flora</em> 290: 152045. https://doi.org/10.1016/j.flora.2022.152045</p>
<p>Presl, C.B. (1827) Descriptiones et icones Plantarum, quas in America meridionalis et Borealis, in insulis Philippinis et Marianis collegit: Orchidaceae. <em>Reliquiae Haenkeanae</em> 1: 91–104.</p>
<p>POWO (2022) <em>Plants of the World Online</em>. Facilitated by the Royal Botanic Gardens, Kew. Published on the Internet: http://www.plantsoftheworldonline.org/ (Retrieved 22 April 2022)</p>
<p>Reichenbach, H.G. (1873) <em>New Garden Plants</em>. The Gardeners’ Chronicle & Agricultural Gazette.</p>
<p>Smidt, E.C., Engels, E.C. & Miranda, M.R. (2016) A new <em>Aspidogyne</em> (Orchidaceae: Goodyerinae) from the Brazilian Atlantic Forest. <em>Phytotaxa</em> 289: 279–284. https://doi.org/10.11646/phytotaxa.289.3.8</p>
<p>Smidt, E.C., Salazar, G.A., Mauad, A.V.S.R., Engels, M.E., Viruel, J., Clements, M., Pérez, I.J. & Chase, M.W. (2021) An Indomalesian origin in the Miocene for the diphyletic New World jewel orchids (Goodyerinae, Orchidoideae): molecular dating and biogeographic analyses document non-monophyly of the Neotropical genera. <em>Botanical Journal of the Linnean Society</em> 197: 322–349. https://doi.org/10.1093/botlinnean/boab028</p>
<p>Sprunger, S., Cribb, P. & Tosacano de Brito, A.L.V. (1996) <em>João Bradosa Rodrigues Iconografia des Orchidées do Brésil</em>. V1: The illustrations. Friedrich Reinhardt Verlag, Basle. 540 pp.</p>
<p>Thiers, B. (2022) <em>Index Herbariorum</em>. Part I: The herbaria of the world. New York Botanical Garden. Available from: https://www.sweetgum.nybg.org/ih (access 29 January 2022)</p>
<p>Barbosa Rodrigues, J. (1882) <em>Genera et species Orchidacearum novarum II</em>. Sebastianopolis, Rio de Janeiro. Typografia Nacional. 295 pp.</p>
<p>BFG (2015) Growing knowledge: an overview of Seed Plant diversity in Brazil. <em>Rodriguésia</em> 69: 1513–1527. https://doi.org/10.1590/2175-7860201566411</p>
<p>BFG (2018) Brazilian Flora 2020: Innovation and collaboration to meet Target 1 of the Global Strategy for Plant Conservation (GSPC). <em>Rodriguésia</em> 66: 1085–1113. https://doi.org/10.1590/2175-7860201869402</p>
<p>BFG (2021) Brazilian Flora 2020: Leveraging the power of a collaborative scientific network. <em>Taxon</em> 71: 178–198. https://doi.org/10.1002/tax.12640</p>
<p>Bona, C.B., Engels, M.E., Pieczak, F.S. & Smidt, E.C (2020) Comparative vegetative anatomy of Neotropical Goodyerinae Klotzsch (Orchidaceae Juss.: Orchidoideae Lindl.). <em>Acta Botanica Brasilica </em>34: 530–539. https://doi.org/10.1590/0102-33062020abb0032</p>
<p>Cogniaux, A. (1896) Orchidacaeae I.<em> In: </em>Martius, C.F.P. (Ed.) <em>Flora Brasiliensis</em> VIII, Part 4, third reprint 1989. At Shiva offset press, Dehra Dun. 672 pp.</p>
<p>Engels, M.E, Barros, F. & Smidt, E.C. (2016) A subtribo Goodyerinae (Orchidaceae: Orchidoideae) no estado do Paraná, Brasil. <em>Rodriguésia</em> 67: 917–952. https://doi.org/10.1590/2175-7860201667406</p>
<p>Fidalgo, O. & Bononi, V.L.R. (1989) <em>Técnicas de coleta, preservação e herborização de material botânico</em>. Reimpressão. Instituto de Botânica, São Paulo, 62 pp.</p>
<p>Garay, L.A. (1977) Systematics of the Physurinae (Orchidaceae) in the New World. <em>Bradea</em> 28: 191–204.</p>
<p>Hoehne, F.C. (1945) <em>Flora Brasílica</em> Fasc. 8, Vol. 12, 2. Graphicars-F. Lanzara, São Paulo. 389 pp.</p>
<p>IUCN (2017) <em>Guidelines for using the IUCN red list categories and criteria.</em> Version 12. Prepared by the standards and petitions subcommittee. IUCN, Gland, Cambridge. Available from: https://portals.iucn.org/library/sites/library/files/documents/RL2001-001-2nd.pdf (accessed 29 January 2022)</p>
<p>Klotzsch, J.F. (1846) <em>Getreue Darstellung und Beschreibung der in der Arzneykunde Gebrauchlichen Gewachse</em>. Vol. 14. pl. 24.</p>
<p>Meneguzzo, T.E.C. (2012) Mudanças nomenclaturais em Goodyerinae do Novo Mundo (Orchidaceae). <em>Orquidário</em> 26: 86–91.</p>
<p>Meneguzzo, T.E.C. (2020a) <em>Aspidogyne</em> <em>in</em> Flora do Brasil 2020. Jardim Botânico do Rio de Janeiro. Available from: http://floradobrasil.jbrj.gov.br/reflora/floradobrasil/FB37213 (access 29 January 2022)</p>
<p>Meneguzzo, T.E.C. (2020b) <em>Microchilus in</em> Flora do Brasil 2020. Jardim Botânico do Rio de Janeiro. Available from: http://floradobrasil.jbrj.gov.br/reflora/floradobrasil/FB11843 (access 29 January 2022)</p>
<p>Ormerod, P. (2002) Taxonomic changes in Goodyerinae (Orchidaceae: Orchidoideae). <em>Lindleyana</em> 17: 189–238.</p>
<p>Ormerod, P. (2005) Studies of Neotropical Goodyerinae (Orchidaceae). <em>Harvard Papers in Botany</em> 9: 391–423.</p>
<p>Ormerod, P. (2007) Studies of Neotropical Goodyerinae (Orchidaceae) 2. <em>Harvard Papers in Botany </em>11: 145–177. https://doi.org/ 10.3100/1043-4534</p>
<p>Ormerod, P. (2008) Studies of Neotropical Goodyerinae (Orchidaceae) 3. <em>Harvard Papers in Botany </em>13: 55–87. https://doi.org/ 10.3100/1043-4534</p>
<p>Ormerod, P. (2009) Studies of Neotropical Goodyerinae (Orchidaceae) 4. <em>Harvard Papers in Botany</em> 14: 111–128. https://doi.org/10.3100/025.014.0203</p>
<p>Ormerod, P. (2013) Studies of Neotropical Goodyerinae (Orchidaceae) 5. <em>Harvard Papers in Botany </em>18: 51–60. https://doi.org/ 10.3100/025.018.0108</p>
<p>Pabst, G.F.J. & Dungs, F. (1975) <em>Orchidaceae Brasilienses</em> I. Kurt Schmersow, Hildesheim, 408 pp.</p>
<p>Pieczak, F.S., Smidt, E.C., Engels, M.E., Machado, R.G.P. & Bona, C. (2022) Floral micromorphology and anatomical diversity in <em>Microchilus</em> (Orchidaceae: Goodyerinae). <em>Flora</em> 290: 152045. https://doi.org/10.1016/j.flora.2022.152045</p>
<p>Presl, C.B. (1827) Descriptiones et icones Plantarum, quas in America meridionalis et Borealis, in insulis Philippinis et Marianis collegit: Orchidaceae. <em>Reliquiae Haenkeanae</em> 1: 91–104.</p>
<p>POWO (2022) <em>Plants of the World Online</em>. Facilitated by the Royal Botanic Gardens, Kew. Published on the Internet: http://www.plantsoftheworldonline.org/ (Retrieved 22 April 2022)</p>
<p>Reichenbach, H.G. (1873) <em>New Garden Plants</em>. The Gardeners’ Chronicle & Agricultural Gazette.</p>
<p>Smidt, E.C., Engels, E.C. & Miranda, M.R. (2016) A new <em>Aspidogyne</em> (Orchidaceae: Goodyerinae) from the Brazilian Atlantic Forest. <em>Phytotaxa</em> 289: 279–284. https://doi.org/10.11646/phytotaxa.289.3.8</p>
<p>Smidt, E.C., Salazar, G.A., Mauad, A.V.S.R., Engels, M.E., Viruel, J., Clements, M., Pérez, I.J. & Chase, M.W. (2021) An Indomalesian origin in the Miocene for the diphyletic New World jewel orchids (Goodyerinae, Orchidoideae): molecular dating and biogeographic analyses document non-monophyly of the Neotropical genera. <em>Botanical Journal of the Linnean Society</em> 197: 322–349. https://doi.org/10.1093/botlinnean/boab028</p>
<p>Sprunger, S., Cribb, P. & Tosacano de Brito, A.L.V. (1996) <em>João Bradosa Rodrigues Iconografia des Orchidées do Brésil</em>. V1: The illustrations. Friedrich Reinhardt Verlag, Basle. 540 pp.</p>
<p>Thiers, B. (2022) <em>Index Herbariorum</em>. Part I: The herbaria of the world. New York Botanical Garden. Available from: https://www.sweetgum.nybg.org/ih (access 29 January 2022)</p>