Indexed on: 01 Jul '57Published on: 01 Jul '57Published in: Brittonia
The twelve named species in the West Indian section Nesophytum are here reduced to four, including two varieties for each of the four. Similarity of leaves, intergrading floral characters, and existence of many sterile specimens make the application of anatomical characters desirable. The characters of stomatal crypts, epidermal construction, external shape of the inferior ovary, and the calyx have proved most useful. The four species appear to be divisible into two basic types which are most similar and least specialized in the eastern part of the range. Their distribution across Cuba, Hispaniola, and Puerto Rico reflects in part the geological history of the region.