Collabium chapaense (Gagnep.) Seidenf. & Ormerod 2001 Photo by Averyanov and Taiwania 61(4):319-354 November 2016, New Species of Orchids (Orchidaceae) in the Flora of Vietnam Averyanov, Nong, Nguyen and Truong

Full Shade Cool Summer EARLIER Fall

Common Name or Meaning The Chapa Collabium [A district of Lao Cai of northernmost Vietnam]

Flower Size 1" [2.5 cm]

Found in northwestern Vietnam in primary broad-leaved, mixed and coniferous, humid submontane and montane forests on granite and sandstone, commonly on steep shady slopes near mountain tops at elevations of 1200 to 1900 meters as a small sized, cool growing terrestrial that blooms in the summer and earlier fall. Closely related to and often cited as a synonym of C formosanum, C chapaense differs in its green flowers, white column (purple at apex), its long, narrowly lanceolate floral bracts and the shortly conical, saccate spur.

Synonyms Chrysoglossum chapaense (Gagnep.) Tang & F.T.Wang 1951; *Tainia chapaensis Gagnep. 1932

References W3 Tropicos, Kew Monocot list , IPNI ; Opera Botanica #72 Orchid Genera in Thailand XI Cymbidiaeae Seidenfaden 1983 as syn of C formosanum; Taiwania 61(4):319-354 November 2016, New Species of Orchids (Orchidaceae) in the Flora of Vietnam Averyanov, Nong, Nguyen and Truong

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