FLORA OF VIETNAM
Orchidaceae
Bulbophyllum biesetoides Seidenf.

Son La Prov., Van Ho Distr., Chieng Xuan Municipality, Co Hong village, territory of Xuan Nha natural reserve, Pha Luong Mountain.

Primary coniferous forest with Pinus cernua on very steep mountain slopes and cliffs composed by brown sandstone at elevation 1000-1050 m a.s.l. around point 20°42′14.2″N 104°43′53.9″E.

Creeping epiphyte on mossy trees. Locally common.

12 November 2013 CPC 6981
Coll.: L.Averyanov, N.T.Hiep, N.S.Khang, N.D.Thang, L.D.Qui

Fl. in September 2014, tepals purple, veins on sepals and petals dark purple, lip uniform dark purple, column dull purple. Photos. L.Averyanov.