FLORA OF VIETNAM
Rubiaceae
Ophyorrhiza sp. ?

N. Vietnam, Bac Can prov., Na Ri distr., Kim Hy municipality,
vicinities of Lung Hin Con village (N 22°17′ E 106°03′), 27 km to 55°
of Bac Can city. Primary evergreen broadleaved closed forest on very
steep rocky slope of karst remnant limestone ridge at elev. 600-700 m
a.s.l. Adpressed lithophytic forb on shady cliffs. Leaves
silvery-green. Very common. Codominanthe of lithophytic forb
communities.

NTH 3715 20 Oct. 1999

Collectors: N.T. Hiep, P.K. Loc, L. Averyanov.