FLORA OF VIETNAM
Rubiaceae
Psychotria sp.
Ha Giang Prov., Vi Xuyen Distr., Tung Ba municipality, Khau Ca NR.
Primary broad-leaved humid evergreen forest on very steep slopes and along rocky ridge composed with solid crystalline highly eroded limestone at elevation 700-1150 m a.s.l. around point 22°50′43.9″N 105°07′18.5″E. ( Khau Ca forest station to travel b,a,c to Minh Son to Lung village to Khau Ca Foretbstation)
Shrub, occasional.
10 May 2015 CPC 7861 Coll.: N.Q. Hieu, N.T.Hiep, T.B. Ngan, C.Q. Ngan, D.K. Harder, C. P. Tuy, G.C.Pao