Coelogyne septemcostata J.J.Sm. 1903 SECTION Speciosae

Photo by J B Comber

Another Flower Color

Photo by Khairimhd

Part Sun HotCoolWinter through EARLYSummer

Common Name The Seven Ribbed Coelogyne [refers to the keels on the lip, only the Sumatran type had 7, there can be from 5 to 8]

Flower Size 1.7" [4.2 cm]

Found in Thailand, Malaysia, Sumatra and Borneo [Sabah] in moist shady lowland hill forests often in trees overhanging rivers and streams at elevations of 50 to 2300 meters as a medium sized, hot to cool growing epiphyte with clustered, ovoid, longitudinally rugose pseudobulbs carrying a single, apical, plicate, elliptic, acute, gradually narrowing below into the elongate, petiolate stalk leaf that blooms on a synanthous, basal, erect, slender, 5" [12.5 cm] long, single flowered inflorescence arising on a newly developing pseudobulb and completely enveloped by a few imbricate, acute bracts and has successively opening flowers that do not open fully and are downward set.

Synonyms Coelogyne membranifolia Carr 1932

References W3 Tropicos, Kew Monocot list , IPNI ; Flora of Malaya Vol 1 Holttum 1957 as C membranifolia; Botanisk Tidsskrift Bind 71 1-30 Contributions to the Orchid Flora of Thailand VII Seidenfaden 1976 as C membranifolia drawing fide; The Orchids of Penninsular Malaysia and Singapore Seidenfaden & Woods 1992 drawing fide; The Plants of Mount Kinabalu Vol 2 Orchids Wood Beaman & Beaman 1993 photo ok; A Checklist of the Orchids of Borneo Wood & Cribb 1994 as C membranifolia; A Checklist of the Orchids of Borneo Wood & Cribb 1994; Orchids of Sumatra Comber 2001 photo fide; Orchids of Sarawak Wood & Beaman Etal 2001; The Genus Coelogyne A Synopsis, D A Clayton 2002 photo hmm; The Orchids of Mount Kinabalu Vol 1 Wood, Beaman, Lamb, Chu Lun and Beaman 2011 photo fide; The Orchids of Mount Kinabalu Vol 2 Wood, Beaman, Lamb, Chu Lun and Beaman 2011; Wild Orchids of Penninsular Malaysia Ong, O'Byrne, Yong & Saw 2011 photo fide; Les Coelogynes E & J George 2011 photos fide; AOS Bulletin Vol 85 #7 2016 photo fide;