Pleurothallis revoluta (Ruiz & Pav.) Garay 1962

Plant and Inflorescence Photos by The Societe de Orchidees Du Nord Website

Full Shade Cold Fall

Common Name The Rolled Pleurothallis

Flower Size .8" [2 cm]

Found in Trinidad & Tobago, Colombia, Venezuela, Ecuador, Peru and Bolivia at elevations of 2400 to 3000 meters as a medium sized, cold growing epiphyte with stout, erect ramcauls with a spotted, tubular sheath below the middle and 2 others at the base and carrying a single, apical, erect, coriaceous, elliptical, acute, cuneate below into the sessile base leaf that blooms in the fall on a suberect to arching, to 10" [to 25 cm] long, loose, secund, simultaneously several flowered inflorescence arising through a slender spathe at the base of the leaf with infundibular, acute floral bracts.

Synonyms Humboltia diffusa (Poepp. & Endl.) Kuntze 1891; *Humboltia revoluta Ruiz & Pav. 1798; Humboltia semipellucida (Rchb.f.) Kuntze 1891; Pleurothallis complicata Rolfe ex Rusby 1896; Pleurothallis diffusa Poepp. & Endl. 1836; Pleurothallis macrophylla Lindl. 1842; Pleurothallis semipellucida Rchb.f. 1850; Stelis revoluta (Ruiz & Pav.) Willd. 1805

References W3 Tropicos, Kew Monocot list , IPNI ; AOS Bulletin Vol 26 No 10 1957 photo as P diffusa; Venezuelan Orchids Illustrated Vol 1 Dunsterville & Garay 1959 drawing fide as P diffusa; Native Orchids of Trinidad Schultes 1960 as P diffusa; AOS Bulletin Vol 30 No 5 1961 as P diffusa; Native Orchids of Trinidad Schultes 1960 as P diffusa; AOS Bulletin Vol 30 No 5 1961 as P diffusa; Flora de Venezuela Foldats Volumen XV Part 2 1970 drawing fide; Fieldiana Biology, Vol 33, 1st Supple. to the Orchids of Peru Schweinfurth 1970; Orchids of Venezuela, An Illustrated Field Guide Vol 6 Dunsterville & Garay 1976 as P revoluta; The Orchids of Surinam Werkhoven 1986 photo fide; Icones Planetarum Tropicarum Series II plate 0283 Dodson & Vasquez 1989 drawing fide; Icones Orchidacearum Peruviarum Plate 551 Bennett & Christenson 1998 drawing fide; 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 drawing/photo fide; Flora of the Venezuelan Guayana Vol 7 Steyermark, Berry, Yatskievych and Holst 2003

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