Bulbophyllum contortisepalum J.J. Sm. 1912 SECTION Hoplandra Verm 2008

Photo by Erica Schultz and her Orchid Website

What was known as B streptopetalum

Another Angle

Lip Detail

Another flower lip detail showing dorsal sepal variation

Photos by Khairimhd


Common Name The Twisted Sepals Bulbophyllum

Flower Size 2 to 3" [5 to 7.5 cm] long

Found in Papua and New Guinea and Vanuatu in mist forests on moss-free trunks and branches at elevations of 50 to 1500 meters as miniature to small sized, hot to cool growing epiphyte with 1/4 to 1/2" [.625 to 1.25 cm] between each ovoid, obtuse, 4 angled pseudobulb carrying a single, apical, elliptic-ligulate, obtuse, basal narrow and glabrous leaf and is free-flowering if grown well with a slender, 2 1/4" to 4" [6 to 10 cm] long, erect to drooping, bracteate [3], green to purple, single flowered inflorescence with tubular, subulate-acuminate florla bracts and carrying a solitary flower that increases in size with time and is held above the leaves.

Cited as a synonym of Bulbophyllum falciferum but differs in the length and shape of the dorsal sepal and in the apex of the petals. The elongate, drooping, basally intertwined sepals are mostly the same in either species.

B streptopetalum which is smaller in all flower parts is now considered to be a synonym of B contortisepalum and as can be seen above there is a lot a variation in the dorsal sepal of the species

Synonyms Bulbophyllum streptosepalum Schltr. 1913

References W3 Tropicos, Kew Monocot list , IPNI ; Orchidaceae Of German New Guinea Schlechter 1913; Orchidaceae of German New Guinea Schlechter 1913/85 as B streptosepalum drawing fide; Lowland Orchids of of Papua New Guinea Peter O'Byrne 1994 drawing/photo ok; Orchids of Papua New Guinea Millar 1999 as B streptosepalumphoto fide; Bulbophyllum and Their Allies Siegerist 2001; Bulbophyllum and Their Allies Seigerist 2001 photo fide as B streptosepalum; New species of Bulbophyllum from eastern Malesia (Orchidaceae) Nordic Journal of Botany 26: 129195, 2008 Vermuellen