A New Species of Sigmatostalix (Orchidaceae: Oncidiinae) from Northern Ecuador

Franco Pupulin; Gilberto Merino; Jhon Valle

doi:10.3100/1043-4534(2008)13[47:ANSOSO]2.0.CO;2

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Franco Pupulin,^*,** Gilberto Merino,^** Jhon Valle^**

^*Jardín Botánico Lankester, Universidad de Costa Rica, P. O. Box 1031-7050, Cartago, Costa Rica; Harvard University Herbaria, 22 Divinity Avenue, Cambridge, Massachusetts 02138, U.S.A.; Marie Selby Botanical Gardens, 811 South Palm avenue, Sarasota, Florida 32436, U.S.A. Email: fpupulin@cariari.ucr.ac.cr. Author for correspondence.
^**Ángel Andreetta Research Center on Andean Orchids, Universidad Alfredo Pérez Guerrero–Extensión Gualaceo, Ecuador.

Abstract

A new species of the genus Sigmatostalix, S. uncinata, is described and illustrated from the province of Carchi in northern Ecuador. Sigmatostalix uncinata is compared with S. aristulifera, from which it mainly differs by the subquadrate lateral lobes of the lip having an apical, linear, uncinate appendix (vs. narrowly dolabriform and apically emarginate-bilobed); and a semilunate, rounded, concave callus (vs. absent or reduced to a low keel). The phylogenetic position of Sigmatostalix is discussed, and previous infrageneric schemes of classification are reviewed.

Citation Download Citation

Franco Pupulin, Gilberto Merino, and Jhon Valle "A New Species of Sigmatostalix (Orchidaceae: Oncidiinae) from Northern Ecuador," Harvard Papers in Botany 13(1), 47-53, (1 June 2008). https://doi.org/10.3100/1043-4534(2008)13[47:ANSOSO]2.0.CO;2

Published: 1 June 2008

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