Hevea pauciflora var. coriacea Ducke

Monogrpah of the Genus Hevea
Hevea paudfTora (Spruce ex Benth.J Mueller Argoviensls var.
Corlacea Du eke In Arch. Inst. Biol. Veg. Rio Jan. 2 (1935) 239.
DeL R. E Schultes
SMITHSONIAN INSTITUTION
From THE UNITED STATES NATIONAL HERBARIUM
Explorations carried out for the Division of Rubber Plant Investigations,
Bureau of Plant Industry, Soils and Agricultural Engineering, Agricul-
tural Research Administration, United States Department of Agriculture,
in collaboration with the Ministerio de la Economía Nacional, Departa-
mento de Agricultura and the Caja de Crédito Agrario of Colombia.
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