Contribution to the Guianan Flora: 'Dalechampia', 'Haematostemon', 'Omphalea','Pera', 'Plukenetia', and 'Tragia' (Euphorbiaceae) with Notes on Subfamily Acalyphoideae

摘要

Dalechampia, Haematostemon, Omphalea, Pera, Plukenetia, and Tragia(Euphorbiaceae, subfamily Acalyphoideae) are treated for the Guianas. Notes on Guianan Euphorbiaceae, subfamily Acalyphoideae, tribes Omphaleae, Pereae, and Plukenetieae, and ecological notes on each species are given. Also included is a key to the subfamilies of Euphorbiaceae and a key to the Guianan genera of subfamily Acalyphoideae.