Pg. Delprete, NOTES ON CALYCOPHYLLOUS RUBIACEAE - PART III - SYSTEMATIC POSITION OFTHE MONOTYPIC MEXICAN GENUS COSMOCALYX AND NOTES ON THE CALYCOPHYLL DEVELOPMENT, Brittonia, 50(3), 1998, pp. 309-317
The systematic position of Cosmocalyx, heretofore heated as a genus in
certae sedis, is discussed. The morphological features of Cosmocalyx s
uggest strong similarities to various genera of the Hamelieae, to whic
h it is compared and where it is placed. A complete description of Cos
mocalyx, observations on its phenology, and comments on calyx and frui
t development are presented and illustrated.