FLORA OF VIETNAM. Fam. Urticaceae. Procris sp. N. Vietnam, prov. Cao Bang, distr. Thach An, about 28 km to SE from. Cao Bang town (N 22°29' E 106°28). Primary evergreen broadleaved. closed wet forest along deep shadow canyon of remnant limestone ridge. at 300-400 m alt. Epilite herb with pendant shoots up to 0.6 m lg on. waterfall cliffs. Not common. No CBL 946 06 Dec. 1998. International Botanical Expedition of the U.S.A. National Geographic. Society (grant No 6300-98). . Collectors: Averyanov L., N.Q.Binh, N.X.Tam.
Coordinates (geographic position):22° 29′ N, 106° 28′ E ±1000 mRecord creation: 2019-01-16, Leonid Averyanov, ILCE-7RCitation: Specimen LE 01041894 // Virtual herbarium of Komarov Botanical Institute RAS — http://re.herbariumle.ru/01041894