NOTES ON CALYCOPHYLLOUS RUBIACEAE .1. MORPHOLOGICAL COMPARISONS OF THE GENERA CHIMARRHIS, BATHYSA, AND CALYCOPHYLLUM, WITH NEW COMBINATIONSAND A NEW SPECIES, CHIMARRHIS-GENTRYANA

A comparison of some genera of the Condamineeae (Rubiaceae) with a few taxa of closely related tribes (Rondeletieae, Calycophylleae, and Cin choneae) revealed that some species of Chimarrhis (Condamineeae s. 1.) , Bathysa (Rondeletieae), and Calycophyllum (Calycophylleae) are often misassigned to genera. The taxonomic significance of calycophylls is discussed; the generic boundaries of Chimarrhis, Bathysa, and Calycoph yllum are reevaluated; and their similarities and differences are disc ussed. As a result, a new calycophyllous species of Chimarrhis from th e Amazon, C. gentryana, is described, two of its species are transferr ed to Bathysa (B. Bathysoides, B. perijaensis), and one species of Bat hysa (B. difformis) is reduced to synonymy under Chimarrhis (C. turbin ata).