Orchidaceae

Dendrobium devonianum Paxton

Ha Giang prov., Quan Ba distr., Bat Dai Son Nature Reserve, Thanh Van commune, Mo Sai village, around point 23º07ʹ46.4ʺN 104º57ʹ56.2ʺE, at elevation 1000-1190 m a.s.l., karstic, highly eroded mountains composed of solid marble-like limestone, primary evergreen broad-leaved and mixed (with Pseudotsuga sinensis) humid forest on steep rocky slopes near mountain tops. Branch epiphyte on mossy tree on shady rocky mountain slope. Not common.

18 April 2018, L. Averyanov, Nguyen Sinh Khang, Chuong Quang Ngan, T. Maisak, VR 431a.

Herbarium prepared in 31 May 2019. Flowers odorless, tepals white with purple apices, lip white with 2 bright yellow spots on sides of disc and purple apex. L. Averyanov, VR 431a.