Monographs Details: Ouratea
Authority: Maguire, Bassett. 1989. The Botany of the Guayana Highland- Part XIII. Mem. New York Bot. Gard. XIII: 1-127.
Description:Genus Description - The genus Ouratea is prominent in Guayana,
especially in riverine forests and savanna formations.
N o monographic treatment ofthe genus
has appeared since 1876 when Engler's work was
published (Martius, H . bras. 12(2): 302-351).
Eighty-five species were treated in that work, of
which 61 were recognized from Brazil. Of the
total number of species estimated for the genus,
the number varies considerably, from 100 (Steyermark,
1986), 120 (Sastre, 1987), 200 (Mabberley,
1987), and 300 (Willis, 7th ed., 1966).
Sixteen species have been recently published by
Sastre (1981, 1986, 1988a, 1988b).
The following conspectus embraces 63 taxa of
which about half have been found to be undescribed.
The number of new taxa reflects the intensive
exploration that has been carried out
throughout the Guayana region by Bassett M a guire
(New York Botanical Garden), as well as
by Julian Steyermark (Missouri Botanical Gar-