Pleurothallis arcuata Lindl. 1859 SUBGENUS Specklinia SECTION Effusae Lindl. 1842 Photo by Luis Felipe Varella and his Brazilian Orchid Photo Website

Flower closeup Photo by Dalton Holland Baptista and Orchidstudium

Another Flower Closeup Photo courtesy of Oliver Lenhard

Full Shade Cool to Warm LATE Spring to EARLYSummer

Common Name The Bow-Shaped Pleurothallis [refers to the fractiflex inflorescence]

Flower Size 1/5" [.5 cm]

Found in shady and humid areas of the southeastern Atlantic forest in Brazil, Venezuela, Guyana and Peru in open montane forests to high mountain ridges at elevations of 1000 to 1600 meters as a small sized, warm to cool growing epiphyte with an erect ramicaul enveloped basally by an elongate, tubular, evanescent sheath and carrying a single, apical, erect, coriaceous, elliptic-oblanceolate, obtuse leaf that blooms in the late spring and early summer on a to sometimes 2, to 12.4" [31 cm] long, very loosely, several to many successively flowered, racemose, fractiflex inflorescence that grows with the successive flowers.

Synonyms Humboldtia arcuata (Lindl.) Kuntze 1891; Humboltia arcuata (Lindl.) Kuntze 1891; Lepanthes chrysosepala Barb. Rodr. 1882; Pabstiella arcuata (Lindl.) Luer 2007; Pleurothallis arcuata var. parvifolia Cogn. 1906; Pleurothallis ocellata Porsch 1905; Pleurothallis rhombipetala Rolfe 1893; Specklinia arcuata (Lindl.) Luer 2004; Stelis arcuata (Lindl.) Pridgeon & M.W.Chase 2001

References W3 Tropicos, Kew Monocot list , IPNI ; Iconographia de Orchidaeceae Do Brasil Hoehne 1949 drawing fide; Flora de Venezuela Foldats Volumen XV Part 2 1969 as P rhombipetala; Fieldiana Biology, Vol 33, 1st Supple. to the Orchids of Peru Schweinfurth 1970; Orchidaceae Brasilensis Band 1 Pabst & Dungs 1975 drawing ok; Systematics of Pleurothallis Vol 3 Luer 1986; Orchids of the High Mountain Atlantic Rainforest in SE Brazil Warren & Miller 1994 drawing good; Icones Pleurothallidinarum Vol XX Luer 2000 drawing fide; Lindleyana Vol 16 No 4 2001 as Stelis arcuata; Icones Pleurothallidinarum Vol XXVI Luer 2004 as Specklinia arcuata; Icones Pleurothallidinarum Vol XXIX Luer 2007 as Pabstiella arcuata; The Organ Mountain Range Its History and Its Orchids Miller, Warren, Miller and Seehawer 2008 drawing good; Mille et Une Mini Orchideees Roguenant 2009 as Stelis arcuata photo fide