Piperaceae C. A. Agardh Peperomia tetraphylla (Forst.) Hook.et Arn. S. Vietnam, Prov. Kontum. Evergreen close primary forest on SE slope of Ngoc Linh mountain system at 2100 m alt., on the boundary of Kontum and Quangnam-Danang provinces. Epiphyte. Very common on 1500-2300 m alt. VH 873 22.03.1995 International Botanical Expedition of the U.S.A. National Geographic Society (grant No 5094-93)
Participants: L. Averyanov, N.T. Ban, N. Q. Binh, A. Budantzev, L. Budantzev, N.T. Hiep, D.D. Huyen, P.K. Loc, N.X. Tam, G. Yakovlev