FLORA OF VIETNAM

Araceae.

Arisaema sp.

Border area between Phieng Luong municipality (Ha Giang Prov., Bac Me Distr.) and Sinh Long municipalitiy (Tuen Quang Prov., Na Hang Distr.). Primary broad-leaved humid evergreen and mixed forest on very steep slopes and along rocky ridge composed with solid crystalline highly eroded limestone at elevation 1100-1170 m a.s.l. around point 22°38’24.3’’N 105°20’21.3’’E. Terrestrial and lithophytic herb on steep rocky slope near ridge edge. Leaves dark brown-purple. Spathe light uniform green. Not common. 14 November 2014 CPC 7435 Coll.: L.Averyanov, N.T.Hiep, N.S.Khang, T.Maisak, L.Osinovetz