Bulbophyllum trachyanthum Kraenzl. 1894 SECTION Hyalosema Schlechter 1911

Lip Detail

Photo by Pieter C. Brouwer and his Nature Photo Website

Another Aspect

Flower Lip Closeup

Photo by Linda & Mikael Karlbom


Common Name The Rough Flowered Bulbophyllum

Flower Size 2 3/4" [7 cm]

Found in Papua New Guinea, Solomon Islands, Fiji and Samoa as a small sized, cool to cold growing epiphyte on moss covered branches of large forest trees that occurs at elevations of 2300 to 3000 meters with tan to red close set pseudobulbs carrying a single, apical, yellow basally , green elliptic blade, petiolate leaf that blooms in the winter on a basal, slender, 7.2" [18 cm] long, single flowered inflorescence with minutely lanceolate, acute, keeled, much shorter than the curved ovary floral bracts that is held above the leaves.

This orchid requires ample water and humidity as well as light shade.

Synonyms Bulbophyllum klossii Ridl. 1916; Hyalosema klossii (Ridl.) Rolfe 1919; Hyalosema trachyanthum (Kraenzl.) Rolfe 1919

References W3 Tropicos, Kew Monocot list , IPNI ; Orchidaceae of German New Guinea Schlechter 1914/1985; The Orchids of Papua New Guinea An Introduction Millar 1978 photo fide; Die Orchideen lieferung 13 753 - 816 Bulbophyllinae 1983 as Hyalosema trachyanthum; The Orchids of the Solomon Islands and Bougainville Lewis & Cribb 1991 photo fide; The Orchids of Samoa Cribb & Whistler 1996 photo fide; Orchids of Papua New Guinea Millar 1999 photo good; Bulbophyllums and Their Allies Seigerist 2001; AOS Bulletin Vol 80 #4 2011 photo fide;