Pleurothallis revoluta (Ruiz & Pav.) Garay 1962 SUBGENUS Pleurothallis SECTION Pleurothallis SUBSECTION Antenniferae Luer 1998
Photos by The Societe de Orchidees Du Nord Website
TYPE Drawing by Luer
to 
Common Name The Rolled Pleurothallis
Flower Size .2" [.5 cm]
Found in Colombia, Ecuador, Peru, Bolivia, Venezuela and Trinidad in cloud forests at elevations of 900 to 2000 meters as a small to medium sized, warm to cool growing, caespitose epiphyte and occasional terrestrial with an erect, apically wider and channeled ramicaul enveloped basally by 2 inflated, tubular sheaths and carrying a single, apical, elliptic, acute, gradually narrowing below into a conduplicate sinus leaf that blooms in the spring and fall on more than one, arising from a spathe, erect, 6" [15 cm] long, several successively flowered inflorescence with an as long as to longer than the pedicel floral bract and carrying non-resupinate flowers.
”The size and color of the flowers is variable. Most commonly the flowers are small and transluscent green with small purplish spots. The protrudung petals are narrowly linear but various degrees of thickening occur towards the apex. The lip is transverse, concave centrally and acutely deflexed upon itself above the base with broadly rounded sides of the lateral lobes to either side. The apiculum of the rounded apex points downwards.” Luer 1999
Synonyms *Humboldtia revoluta Ruiz & Pav. 1798; Humboldtia semipellucida (Rchb.f.) Kuntze 1891; 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. 1859; Stelis revoluta (Ruiz & Pav.) Willd. 1806
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;
Flora de Venezuela Foldats Volumen XV Part 2 1970 drawing fide;
Fieldiana Biology, Vol 33, 1st Supple. to the Orchids of Peru Schweinfurth 1970;
Selbyana 1: 272 Luer 1975 drawing fide;
Orchids of Venezuela, An Illustrated Field Guide Vol 6 Dunsterville & Garay 1976 P revoluta;
Orchids of Venezuela An Illustrated Field Guide Vol 3 Dunsterville & Garay 1979 drawing fide;
Systematics of Pleurothallis Vol 3 Luer 1986 as Pleurothallis genychila not = P macrophylla;
Icones Pleurothallidinarum Systematics of Pleurothallis Vol III Luer 1986;
The Orchids of Surinam Werkhoven 1986 photo fide;
Native Orchids of the Eastern Carribean Kenny 1988 photo fide;
Icones Planetarum Tropicarum Series II plate 0283 Dodson & Vasquez 1989 drawing fide;
Icones Orchidacearum Peruviarum Plate 551 Bennett & Christenson 1998 drawing fide;
Flora of the Venezuelan Guayana Vol 7 Steyermark, Berry, Yatskievych and Holst 2003; Macchu Picchu Orchids Eric Christenson 2003;
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