FLORA OF VIETNAM Plants of Halong Bay National Park Pittosporaceae Pittosporum aff. tonkinense
Vietnam, Quang Ninh Prov., Ha Long city, Ha Long Bay, Ti Top island at elev. 50-70 m a.s.l. 20°50′32′N 107°04′32′E.
Secondary closed broad-leaved evergreen forest and shrubs on very steep rocky slopes and cliffs of remnant island mountains composed with solid highly eroded crystalline limestone.
Lithophytic shrub 1.5-2 m tall. Flowers white. Common.