Laos, Vientiane prov., Vang Vieng district, close vicinities of Vang Vien town, secondary degraded evergreen forest on steep slopes of small rocky stream (dry during rainless season) between remnant mountains composed with karstic highly eroded marble-like limestone at elevation at 300-400 m a.s.l. Creeping epiphytic and lithophytic semi-woody vine 3-4 m long in rather open place. Common. 12 December 2015, L.Averyanov, T.Maisak, M.Nuraliev, N.Vislobokov. AL 181 (1 living plant). Flowered in cult 31 July 2017. Flowers dark red, photos. Begonia sp. Lithophytic herb on shady cliffs. Leaves pure green or with palmate whitish streaks. Locally common. AL 182 (4 lants)
Arisaema sp. Terrestrial and lithophytic rhizomatous herb between shady ricks. Leaves light green, slightly glaucous. Not rare. AL 183 (1 plant)
Pyrrosia nummulariifolia (Sw.) Ching Creeping epiphytic and lithophytic vine to 1 m long. Not rare. AL 184a (1 plant)
Lemmaphyllum microphyllum C. Presl Creeping epiphytic and lithophytic vine to 1 m long. Not rare. AL 184b (1 plant)
Pilea disticha (cobra) sp.nov.? Lithophytic herb on shady cliffs, particularly on wet travertine deposits. Common. AL 185 (many plants) FLARA OD LAOS
Tupistra muricata (Gagnep.) N.Tanaka?
Laos, Vientiane prov., Vang Vieng district, close vicinities of Vang Vien town, secondary degraded evergreen forest on steep slopes of small rocky stream (dry during rainless season) between remnant mountains composed with karstic highly eroded marble-like limestone at elevation at 300-400 m a.s.l. Terrestrial and lithophytic herb on very steep rocky shady stream slope. Not rare. AL 186 (3 living plants). 12 December 2015, L.Averyanov, T.Maisak, M.Nuraliev, N.Vislobokov. AL 186 Flowered in cult 20 January 2018. Flowers white, tepal apex light violet. Tupistra muricata (Gagnep.) N.Tanaka Terrestrial and lithophytic herb on very steep rocky shady stream slope. Not rare. AL 187 (1 plant)
Aspidistra sp. (kosobruhii) Terrestrial herb on steep rocky shady stream slope. Leaf dark dull velvety uniform green. Rare. AL 188 (2 plants)
Ophiopogon sp. Terrestrial herb with stem to 20 cm long on steep rocky shady stream slope. Common. AL 189 (5 plants)