Bulbophyllum microrhombos Schltr. 1912 SECTION Codonosiphon Schlechter 1913TYPE Drawing © Schlechter

What Cribb thinks is B microrhombos? no rhombic petals Photo by © Lewis & Cribb

What Parsons thinks is B microrhombos? but may be B aureoapex no rhombic petals Photo by © Ron Parsons and his Flower Shots Photo Website

Part shadeHotWarm LATEFall TO EARLY Winter

Common Name The Tiny Diamond Bulbophyllum [refers to the petals]

Flower Size 1” [2.5 cm]

Found in New Guinea, the Solomon Islands and Vanuatu on trees in forests at elevations around 500 to 1200 meters as a mini-miniature sized, hot to warm growing epiphyte with ovoid to cylindical-ovoid pseudobulbs carrying a single, apical, erect to suberect, ligulate to oblong-ligulate, minutely apiculate, glabrous leaf that blooms in the late fall and early winter on a basal, thin, filiform, 1 to 1.2” [2.5 to 3 cm] long, single flowered inflorescence

Schlechter states that the flowers are red, the lip golden yellow but red at the base. He also says it is similar to B chrysoglossum but B microrhombos differs in the thicker pseudobulb, much shoreter leaves, and the small rhombic petals.

Synonyms Hapalochilus microrhombos (Schltr.) Garay & W.Kittr. 1985 publ. 1986

References W3 Tropicos, Kew Monocot list , IPNI ; *The Orchidaceae of German New Guinea Schlechter 1913 drawing fide; Orchids of Vanuatu Lewis & Cribb 1989; Orchids of the Solomon Islands and Bougainville Lewis & Cribb 1991 photo fide to Lewis and Cribb but not to Schlechter;