Pleurothallis casapensis Lindl. 1842 SUBGENUS Acianthera SECTION Sicariae SUBSECTION Sicariae Luer 1986

Side View of Flower

Photos Jay Pfahl

Leaf and Flowers

Plant and Flowers Photos by Eric Hunt, plant grown by Anna Chai

Green Flower Photo by Jay Pfahl


Common Name

Flower Size 3/8" [1 cm]

Found in Colombia, Ecuador, Peru, Bolivia and Venezuela as a miniature sized, warm to cold growing epiphyte in wet montane forests and secondary evergreen forests at elevations of 600 to 2800 meters with erect, stout ramicauls enveloped basally by 2 tubular sheaths and carrying a single, apical, ovate, ancipitous leaf that gradually narrows into the long petiole and blooms in the late summer and early fall on a short, racemose, several flowered inflorescence holding the flowers close to the leaf base.

Synonyms Acianthera casapensis (Lindl.) Pridgeon & M.W.Chase 2001; Acianthera harpophylla (Rchb.f.) Luer 2004; Acianthera polystachya (Ruiz & Pav.) Pupulin 2012; Humboldtia casapensis (Lindl.) Kuntze 1891; Humboldtia harpophylla (Rchb.f.) Kuntze 1891; Humboltia casapensis (Lindl.) Kuntze 1891; Humboltia polystachya Ruiz & Pav. 1798; Pleurothallis harpophylla Rchb.f. 1855; Pleurothallis triangularis Klotzsch & H. Karst. 1847; Pleurothallis triquetra Klotzsch ex Lindl. 1859; Pleurothallis wolfiana Schltr. 1921; Stelis polystachya (Ruiz & Pav.) Willd. 1805

References W3 Tropicos, Kew Monocot list , IPNI ; Bonplandia Rchb.f 1854 as P triangularis; Bonplandia Rchb.f 1855 as P harpophylla; Otia Botanica Hamburgensia Rchb.f 1881 as P harpophylla var atropurpurea; The Orchids of Panama L.O. Williams & P Allen 1946; Icones Pleurothallidinarum Systematics of Pleurothallis Vol 3 Luer 1986; Icones Planetarum Tropicarum Series II Orchids of Peru Plate 0154 Dodson & Bennett 1989 drawing fide; Orchids of Bolivia Vol 1 Pleurothallidinae Vasquez & Ibisch 2000 photo/drawing fide; Lindleyana Vol 16 No 4 2001 as Acianthera casapensis; Icones Pleurothallidinarum Vol XXVI Luer 2004 drawing fide; Orchid Species of Peru Zelenko Bermudez 2009 photo fide as Acianthera casapensis; Mille et Une Mini Orchideees Roguenant 2009 as Acianthera casapensis photo ok; Orquideas del Valle de Aburra Medellin Colombia Orqidelogia 2014 photo fide; Pleurothallids Neotropical Jewels Vol 1 Karremans & Viera 2020 as Acianthera polystachys photo fide; Orquideas de Farallones de Cali Galindo-Tarazona, Haelterman, Zuluaga Trochez and Sebastian Moreno 2020 as Acianthera polystachya photo fide