Myoxanthus exasperatus (Lindl.) Luer 1982 SUBGENUS Myoxanthus SECTION Myoxanthus Luer 1992 Photo by Dalton Holland Baptista

Inflorescence Photo by Eric Hunt, plant grown by the San Francisco Conservatory of Flowers

Part sunCoolTo HotSpring

Common Name The Covered with Hard Sharp Points Myoxanthus [refers to the pubescence of the sheaths and sepals]

Flower Size 3/8" [1 cm]

Found in Venezuela and Ecuador as a miniature sized, hot to cool growing epiphyte or lithophyte often in full sun at elevations of 300 to 2580 meters with stout, erect ramicauls enveloped by 5 to 8 long, tubular, hispidous sheaths carrying a single, apical, erect, coriaceous, narrowly ovate, acute leaf that is cuneate below into the subpetiolate base that blooms in the spring on a congested fascile of several, single, simultaneous flowers arising from the apex of the ramicaul with minutely pubescent peduncles and infundibular, minutely pubescent floral bracts.

Synonyms Anathallis parahybunensis Barb. Rodr. 1882; Humboldtia exasperata (Lindl.) Kuntze 1891; Humboldtia peduncularis Kuntze 1891; Humboltia exasperata (Lindl.) Kuntze 1891; Humboltia peduncularis (Lindl.) Kuntze 1891; Myoxanthus parahybunensis (Barb. Rodr.) Luer 1982; *Pleurothallis exasperata Lindl. 1859; Pleurothallis macropus Schltr. 1915; Pleurothallis peduncularis Lindl. 1843; Specklinia peduncularis (Kuntze) F.Barros 1983 publ. 1984

References W3 Tropicos, Kew Monocot list , IPNI ; Venezuelan Orchids Illustrated Vol 2 Dunsterville & Garay 1961 as Pleurothallis peduncularis drawing fide; Flora de Venezuela Foldats Volumen XV Part 2 1970 as Pleurothallis exasperatus drawing good; Flora de Venezuela Foldats Volumen XV Part 2 1970 as Pleurothallis peduncularis drawing fide; Orchidaceae Brasilenses Band 2 Pabst & Dungs 1977 as Pleurothallis peduncularis drawing fide; Orchids of Venezuela, An Illustrated Field Guide Vol 3 Dunsterville & Garay 1979 as Pleurothallis peduncularis drawing fide; Icones Planetarum Tropicarum plate 246 Dodson 1980 as Pleurothallis peduncularis drawing fide; Las Orquedias de El Salvador Vol 3 Hamer 1981 drawing hmm/ photo fide; The Orchids of Surinam Werkhoven 1986 as Pleurothallis peduncularis photo ok; Icones Pleurothallidinarum Vol IX Systematics of Myoxanthus 1992 drawing fide; Orchids of Venezuela [An illustrated field guide] Vol. 2 Ramiro and Carnevali 2000 drawing fide; Native Ecuadorian Orchids Vol 3 Dodson 2002 drawing/photo ok; Orquideas Nativas del Tachira Cesar Fernandez 2003 photo ok; Orquideas Da Chapada Diamantina Brito & Cribb 2005; Orchid Species of Peru Zelenko Bermudez 2009 photo fide