tailieunhanh - Prosthechea tinukiana sp. nov. (Orchidaceae: Laeliinae): an update of the Prosthechea prismatocarpa complex

The species is similar to Prosthechea ionocentra, but it is easily distinguishable by its inflorescence originating from the penultimate mature pseudobulb; its purple spotted sepals and petals; the cordate, acute labellum; the disc with two longer, narrower keels; the stigmatic arms of the column, which are convergent and rounded; and the narrower stigma | Turkish Journal of Botany Turk J Bot (2015) 39: 499-505 © TÜBİTAK doi: Research Article Prosthechea tinukiana sp. nov. (Orchidaceae: Laeliinae): an update of the Prosthechea prismatocarpa complex 1,2, 1,3 Diego BOGARÍN *, Adam P. KARREMANS Lankester Botanical Garden, University of Costa Rica, Cartago, Costa Rica 2 Herbarium UCH, Autonomous University of Chiriquí, Chiriquí, Panama 3 Naturalis Biodiversity Center, Leiden University, Leiden, Netherlands 1 Received: Accepted: Published Online: Printed: Abstract: We describe and illustrate a new species of Prosthechea from Costa Rica. The species is similar to Prosthechea ionocentra, but it is easily distinguishable by its inflorescence originating from the penultimate mature pseudobulb; its purple spotted sepals and petals; the cordate, acute labellum; the disc with two longer, narrower keels; the stigmatic arms of the column, which are convergent and rounded; and the narrower stigma. Differences from other related species are given and discussed. Data on distribution, habitat and ecology, etymology, and phenology are provided. An updated key to the species of the Prosthechea prismatocarpa complex is presented. Key words: Costa Rica, Cerro Tinuk, Panarica, paramo, new species, Talamanca, taxonomy 1. Introduction Prosthechea Knowles & Westc. comprises 24 species in Costa Rica and about 100 species ranging from Florida southward through Central America and the Antilles down to Argentina (Higgins, 2003; Withner and Harding, 2004; Mó et al., 2014). The genus was resurrected by Higgins (1998), who proposed a broad concept of Prosthechea, segregating it from the well-known genus Encyclia Hook. to embrace species variously treated at some point under the generic concepts of Anacheilium . ex Hoffmanns., Coelogyne Lindl., Epidendrum L., Epithecia Knowles & Westc., Hormidium Lindl. ex Heynh., and Microstylis .