Amazonian savanna vegetation on the sandstone plateau near Araracuara, Colombia
Duivenvoorden, Joost F.; Cleef, Antoine M.
An initial study of the low forest, scrub and herbaceous vegetation on wet, white sand and rocky substrata of the sandstone plateau near Araracuara, Colombian Amazonia (72°25'W-0°35'S) was made. Seven savanna vegetation types (1 community, and 6 associations) were recognized, using the Zürich-Montpellier method of vegetation analysis and synthesis by means of a phytosociological table or species - site matrix. Some of the herbaceous associations show weak affinity with the Syngonantho-Xyridio of wet, white sand savannas in Surinam. The low forest dominated by Bonnetia martiana is compared with the Bonnetia forests occuring at much higher altitudes on the summits of the Chimantá complex in the Venezuelan Pantepui area.