SECTION Piestobulbon Schlechter 1923

Type: Bulbophyllum piestobulbon Schltr. 1923

There are 5 species in this section in forests at unknown elevations in New Guinea and the Pacific Islands .

Epiphytes with patent to ascending rhizomes giving rise to pseudobulbs carrying a single, apical, persistent leaf that blooms on a single flowered inflorescence. The basal node of the pedicel is above the attachment of the floral bracts. The equal in size sepals are free and have 3 veins and the margins are glabrous to ciliate. The petals are single veined and the margins are entire to denticulate, glabrous to ciliate. The lip is mobile, on a thin ligament and is undivided and is adaxially concave at the base, the front of which is bordered by a transverse ridge notched halfway or with a concave crest line. The column foot has a tooth at the apex. The upper margin of the stelida often has a tooth and the lower margin has a tooth. The anterior surface of the anther is not concave and the margin is drawn out. There are 4 pollina.

Entries below with an asterix are listed in publications by J J Vermeullen and so are more likely correct than ones without. Species with a question mark in front, seem to me to not conform and so please use with caution.

1. Bulbophyllum leucorhodum Schltr. 1913 New Guinea

2. *!Bulbophyllum piestobulbon Schltr. 1923 New Guinea and the Solomon Islands