!Ascoglossum calopterum (Rchb. f.) Schltr. 1913 Photo by de Vogel and The Orchids of New Guinea Website
Inflorescence blooming Photo by Dale and Deni Borders
and EARLY 
Common Name The Beautiful Winged Ascoglossum
Flower Size 1" [2.5 cm]
Found in Sulawesi, the Moluccas, New Guinea, the Phillipines and the Solomon Islands at altitudes of sealevel to 600 meters on large trees in primary rainforests found high up in the spreading branches of a leafy tree and savannah thickets or mangrove swamps as a small to medium sized, hot to warm growing, monopodial epiphyte, with an ascending or arcuate, rigid, terete stem carrying 2 ranked, rigid, very leathery, arcuate-spreading, strap-like, unequally bilobed apically, obtuse leaves blooming in the spring and early summer on an erect or horizontal, axillary, to 2' [60 cm] long, branched [6 flowers per], nodal, purple, densely flowered inflorescence that has triangular-ovate floral bracts with several [15], color variable, non-scented flowers.
Synonyms Ascoglossum purpureum [J.J.Sm.] Schlechter 1913; Cleisostoma cryptochilum F. Muell. 1885; Renanthera caloptera (Rchb.f.) Kocyan & Schuit. 2014; *Saccolabium calopterum Rchb.f; Saccolabium purpureum J.J. Sm. 1900; Saccolabium schleinitzianum Kraenzl. 1886
References W3 Tropicos, Kew Monocot list , IPNI ; The Orchidaceae of German New Guinea Schlechter 1913/82 drawing fide; Die Orchideen Schlechter 1915; Die Orchideen Schlechter 1915 as A purpureum; Encyclopedia of Cultivated Orchids Hawkes 1965; The Orchids of Papua New Guinea An Introduction Millar 1978 photo fide; The Complete Writings on Philippine Orchids Vol 2 Quisumbing 1981 drawingfide/photo good; Orchidiana Philipiniana Vol 1 Valmayor 1984; Rudolf Schlechter Die Orchideen Band 1B lieferung 21 1165 - 1328 Brieger 1988 drawing/photo fide; Die Orchideen lieferung 19/20 Schlechter/Brieger 1988 as A purpureum; The Orchids of the Solomon Islands and Bougainville Lewis & Cribb 1991 drawing/photo fide; AOS Bulletin Vol 61 No 11 1992 drawing fide; The Manual of Cultivated Orchids Bechtel, Cribb, Laurent 1992 photo fide; AOS Bulletin Vol 62 No 1 1993 photo; Manual of Cultivated Orchids Bechtel, Cribb and Laurent 1992; AOS Bulletin Vol 62 #1 1993 photo fide; Lowland Orchids of of Papua New Guinea Peter O'Byrne 1994 drawing/photo fide; Manual of Orchids Stewart 1995; Orchids of Papua New Guinea Millar 1999 photo fide; Orchids of the Philippines Cootes 2001 photo fide; A to Z of SE Asian Orchids O'Byrne 2001; Lindleyana Vol 17 No 1 2002; Botanica's Orchids Laurel Glen 2002; Flora Malesiana Orchids of the Philippines Vol I Agoo, Shuiteman and de Vogel 2003; Flora's Orchids Nash & La Croix 2005; Flora Malesiana Orchids of New Guinea Vol III Shuiteman and de Vogel 2006
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