FLORA OF LAOS
Orchidaceae
Bulbophyllum orientale Seidenf.

Phou Khao Khouay National Protected Area to about 40 km NE of Vientiane. Dry evergreen primary and secondary forest along rocky stream on sandstone at elev. 350 m a.s.l. Lithophytic adpressed creeping herb. Flowers pure white. Very common. 9 December 2015, L.Averyanov, T.Maisak, AL 154. Ass. Photos Bulbophyllum sp. (Desmosanthes sect.)
Phou Khao Khouay National Protected Area to about 40 km NE of Vientiane. Dry evergreen primary and secondary forest along rocky stream on sandstone at elev. 350 m a.s.l. AL 155 9 December 2015 L.Averyanov, T.Maisak. 2 living plants.
Creeping epiphyte. Common. Dendrobium sp. (D. metrium aff.)
Phou Khao Khouay National Protected Area to about 40 km NE of Vientiane. Dry evergreen primary and secondary forest along rocky stream on sandstone at elev. 350 m a.s.l. AL 156 9 December 2015 L.Averyanov, T.Maisak. Living plants.
Lithophytic herb on large boulders along stream in shady place. Occasional. Luisia sp.? (Papilionanthe ?)
Phou Khao Khouay National Protected Area to about 40 km NE of Vientiane. Dry evergreen primary and secondary forest along rocky stream on sandstone at elev. 350 m a.s.l. AL 157 9 December 2015 L.Averyanov, T.Maisak. 1 living plants.
Epiphyte on small gnarled trees on large boulders along stream in shady place. Occasional.