Pachygenium muyscarum (Spiranthinae), a new overlooked species from the subxerophytic enclaves from the Eastern Range of Colombia

Authorship SCIMAGO INSTITUTIONS RANKINGS

Abstract.

Pachygenium muyscarum, a new species from Colombia, is described, illustrated, and aspects related to its distribution, ecology, conservation status, and relationships with morphologically similar species are discussed. This species is characterized by flowering without leaves, labellum 1.4-1.6 cm long, with the apex trilobulate and labellum nectar glands 0.2-0.4 cm long, subulate and uncinate. To date, this is the only species of the genus present in Colombia, being endemic to the subxerophytic enclaves of Cundinamarca.

Keywords: flora of Bogotá; flora of Cundinamarca; high-Andean terrestrial orchids; Pelexia

Characters	P. ekmanni	P. longibracteatum	P. muyscarum	P. tamanduense	P. ventricosum
Leaves present at flowering	Yes	Yes	No	Yes	No
Length of labellum (cm)	1.4−1.6	1.0−1.2	1.4−1.6	1.2−1.4	1.2−1.4
Apex of the labellum apical lobe	Entire	Entire	Trilobate	Entire	Entire
Length of the labellum spur (cm)	0.2-0.3	0.1-0.2	0.2-0.4	to 0.1	to 0.1
Distribution	Brazil	Brazil	Colombia	Brazil	Paraguay

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Lankester Botanical Garden, University of Costa Rica Jardín Botánico Lankester, Cartago, Cartago, Costa Rica, CR, 302-7050, 25117949, 25117931 - E-mail: franco.pupulin@ucr.ac.cr

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