Bulbophyllum onivense H. Perrier 1937 SECTION Pantoblepharon Schlechter 1925
Photo by © Jean Michel Hervouet
Another Flower Photos by Olaf Pronk and Laurette E.U.R.L. orchids of Madagascar Photos by Jean Michel Hervouet TYPE Drawing by Perrier Common Name The Onive Bulbophyllum [A river of Madagascar]
Flower Size 1/8" [6.2mm]
Found only in central eastern Madagascar in humid evergreen forests at elevations of 1000 to 1500 meters as a mini-miniature sized, warm to cool growing epiphyte with a creeping rhizome with 1/2" between each, orbicular, depressed pseudobulbs carrying a single, apical, lanceolate, petiolate leaf that blooms in the summer and again in the winter on a 1" [2.5 cm] long, 2 to 3 flowered inflorescence with 3 to 4 acute, sheaths.
CAUTION!!!! There are 2 distinct orchid determinations with this name. The first is a yellow flower with purple tinged apical halves and a broader purple lip with hairy margins and broader sepals with apiculate apices. Perrier in his description mentions the apiculate sepals but says the flowers are reddish veined with red. This flowers lip matched much better with Perrier's drawing. J M Hervouet took both the first and the 4th photo, the first is in his newest publication [2018] so maybe he knew that the previous determination by Bosser and Lecoufle [2015] was incorrect
The most prevalent is the second, third and fourth photos with a dark purple flower with either narrow or wide sepals with rounded or more acute apices with an elongate narrow lip with hairy margins. I am inclined to go with the yellow flower as it matches most parts of the drawing. The Type drawing by Perier is absolutely correct.
Synonyms
References W3 Tropicos, Kew Monocot list , IPNI ;
Flora of Madagascar Perrier 1937/81 drawing fide to the yellow flower; Orchids of Madagascar Hermans, Du Puys Cribb & Bosser 2007 fide to the dark red flower; Field Guide to the Orchids of Madagascar Cribb & Herman 2009 photo fide t o the dark red flower; Les Orchidees de Madagascar Bosser & Lecoufle 2015 photo fide to the red flower; A la Recherche des Orchidees de Madagsascar Jean Michael Hervovet 2019 photo fide to the yellow flower; The Orchid Review Vol 127 No 1328 December 2019 photo fide to the red flower;
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