Notes on Guiana Euphorbiaceae

This paper deals with some specimens of Euphorbiaceae from various collectors. The plants have been collected in French and British Guiana. The specimens were sent to me for determination by the Kew Herbarium and the Herbarium of the New York Botanical Garden. Some of these specimens had to be considered as new species, others were new finds for British or French Guiana while the remainder of the list is added for sake of completeness. The author wishes to express his thanks to the directors of the Kew Herbarium and the Herbarium of the New York Botanical Garden for their assistance with the material. The arrangement of the genera is that of Pax in Engler, u. Prantl, Natürl. Pflanzenfam. sec. edition Vol. 19c (1931).