Bulbophyllum costatum Ames 1920 SECTION Leopardinae Bentham 1883 Photo by Jon Wagner

Full shade Warm

Common Name The Ribbed Bulbophyllum [referes to the ridges on the sepals]

Flower Size 2.56" [6.4 mm]

Found in the Philippines at elevations around 600 meters as a small sized, warm growing epiphyte with to 2.4" [to 6 cm] between each tapered, ascending, sometimes slightly curved, wrinkled, cylindrical, sometimes with a blunt angled pseudobulb carrying a single, apical, erect, thin, almost papery in texture, oblong to elliptic leaf that blooms on a basal, horizontal, 3.2" [8 cm] long, single flowered inflorescence.

CAUTION! Many references including Kew put this species as a synonym of B membranifolium but it is obviously diffferent in many respects.

Synonyms

References W3 Tropicos, Kew Monocot list , IPNI ; Orchidiana Philipiniana Vol 1 Valmayor 1984 as B costatum Ames 1920; Flora Malesiana Orchids of the Philippines Vol I Agoo, Shuiteman and de Vogel 2003 as B costatum; Philippine Native Orchid Species Cootes 2011 photo fide;

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