A synopsis of <Emphasis Type="Italic">Cohniella</Emphasis> (Orchidaceae,Oncidiinae) |
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| Authors: | German Carnevali Fernández-Concha William Rolando Cetzal Ix Ricardo Balam Narváez Gustavo A Romero-González |
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| Institution: | 1.Herbario CICY,Centro de Investigación Científica de Yucatán,Yuc.,México;2.El Colegio de la Frontera Sur,Unidad Chetumal,Chetumal,Mexico. C.P. 77000;3.Orchid Herbarium of Oakes Ames,Harvard University Herbaria,Cambridge,USA |
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| Abstract: | A synopsis of the genus Cohniella is presented with nomenclatural updates with a discusion of diagnostic features and biogeographical data. Thirteen species
and one natural hybrid are recognized. Two new species, Cohniella pendula and Cohniella biorbicularis, are described and illustrated. The following four new combinations are proposed: Cohniella binotii, Cohniella brachyphylla, Cohniella cepula, and Cohniella longifolia. Lectotypes are selected for Oncidium subulifolium, Oncidium helicanthum, Oncidium humboldtii, Oncidium jonesianum var. phaeanthum, Oncidium cepula, and Oncidium wittii. We also propose an amended lectotype for Epidendrum cebolleta and several epitypifications and new synonyms. A key to the genera of the Trichocentrum complex is presented (Appendix) as well as keys to the species of Cohniella. |
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