FLORA OF VIETNAM
Dipterocarpaceae
Hopea siamensis Heim

Quang Binh Prov., Minh Hoa Distr., Thuong Hoa municipality, environs of Mo O O O village, around point 17°38′00.4”N 105°55′57.9”E, Kalap Mountain.

Primary mixed and coniferous forest (with Dacrydium elatum and Dacrycarpus imbricatus) on very steep rocky slope and on rocky top of remnant mountain composed with highly eroded solid crystalline limestone at elevation 750-800 m a.s.l.

Tree about 39 m tall, 50-60 cm DBH on steep shady rocky slope near to mountain top. Not rare on tops of ridge.

CPC 3706 25 July 2011
Coll.: N.T.Hiep, L.Averyanov, N.S.Khang, N.Q.Vinh.