(Source: Flora Malesiana ser. 1,
5: Cyclopaedia of collectors, Supplement I)
Probably W. Tangkilisan,
formerly in the employ of the D.E. Indian Forest Service (cf. sub Forest
Research Institute), accompanied Kostermans
on the expedition to Morotai (Moluccas) in 1949.
Material preserved in Herb. For. Res. Inst.
Bogor [BZF] and in Herb.
Bog. [BO]. His name occurs on