Pleurothallis xanthochlora Rchb.f. 1850 SUBGENUS Pleurothallis SECTION Pleurothallis SUBSECTION Longiracemosae [Luer] Luer 1998

Photo by © Karl Senghas and Swiss Orchid Foundation at the Jany Renz Herbaria Website

Full shade Cool Cold LATEWinter THROUGHSummer

Common Name The Yellow Green Pleurothallis

Flower Size .2" [5 mm]

Found in Venezuela, Colombia, Ecuador, Peru and Bolivia at elevations around 1200 to 2300 meters as a medium sized, cool to cold growing epiphyte with slender to stout, erect ramicauls enveloped by a tubular sheath near the middle and 2 to 3 others at the base and carrying a single, apical, erect, coriaceous, elliptical, acute, slightly acuminate, cuneate below into the sessile base leaf that blooms in the late winter through summer on 1 to 4, distichous, 6 to 12" [15 to 30 cm] long, subdensely, simultaneously many flowered inflorescence arising through a spathe at the base of the leaf and has tubular floral bracts.

"The long roots are produced along a stout, shortly creeping rhizome giving rise to an erect ramcicaul carrying a large, elliptic leaf that blooms on a many flowerd raceme arising from the cuneate base of the leaf. The synsepal is concave, but not deeply so, the petals are narrow, but not thickened and the lip is ovate, shallowly concave and subverrucose at the acute apex, The base is truncate and shallowly concave on end. Luer 1999

Synonyms Humboltia xanthochlora (Rchb.f.) Kuntze 1891; Pleurothallis dolichocaulon Schltr.1922; Pleurothallis huanucoensis Schltr. 1921;

References W3 Tropicos, Kew Monocot list , IPNI Venezuelan Orchids Illustrated Vol 2 Dunsterville & Garay 1961 drawing good; AOS Bulletin Vol 36 #9 1967; Flora de Venezuela Volumen 15 Parte 2 Foldats 1970 drawing good; Orchids of Venezuela An Illustrated Field Guide Vol 3 Dunsterville & Garay 1979 drawing good; Icones Pleurothallidinarum Vol XVIII Systematics of Pleurothallis subsection Antenniferae, Longiracemosae, Macrophyllae-Racemosae and Subgenera Pseudsostelis and Acuminata Luer 1999 drawing fide; Orchids of Bolivia Vasquez & Ibisch Vol 1 2000 photo hmm/drawing ok; Orchids of Venezuela [An illustrated field guide] Vol. 3 Ramiro and Carnevali 2000 drawing good; Macchu Picchu Orchids Eric Christenson 2003;

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