Monographs Details: Ouratea liesner Sastre
Authority: Maguire, Bassett. 1989. The Botany of the Guayana Highland- Part XIII. Mem. New York Bot. Gard. XIII: 1-127.
Family:Ochnaceae
Scientific Name:Ouratea liesner Sastre
Description:Species Description - Shrub 3-4 m tall. Leaves subcoriaceous, ovate or oblong, acute at apex, obtuse at base, 6-10 cm long, 2-5 c m wide, entire, revolute, upper surface with 7-9 primary lateral nerves, impressed, arched-ascending at 50°-60°, the intermediate nerves numerous, more slender, and subparallel, lower surface similar but nervation less prominent; petioles 10-12 m m long. Inflorescence paniculate, many-flowered, in anthesis 6-11 c m long, 4-6 c m wide, with 3-7 slender branches 1-4 cm long. Pedicels slender, 6-8 m m long in anthesis. Flower bud obtuse, 4-5 m m long. Sepals 5, oblong- lanceolate, acute, 5 m m long, 2 m m wide. Petals 5, obovate-flabelliform, 5-6 m m long, 3-3.5 m m wide. Anthers 3-3.5 m m long. Fruiting torus spherical, 3 m m diam. Drupe spherical, 5 m m diam.

Distribution and Ecology - Riverine forest and rock outcrops along Rio Pacimoni, Territorio Federal Amazonas, southwestem Venezuela, 80-125 m.

Discussion:

Specimens examined: VENEZUELA, territorio federal amazonas: Dept. Rio Negro: Mamurividi, Rio Pacimoni, r32'N, 66°32'W, 125 m, 3 Apr 1884, Liesner 17174 (MO, P, VEN); Rio Pacimoni, between its mouth and junction with Rio Baria and Rio Yatua, 80 m, 23-25 Jul 1984, Davidse 27760 (MO, P, VEN).

In the original description, Sastre states that the branches, petioles, and peduncles are "pilose." However, an examination of the isotype and paratype at M O shows the branches, petioles, and peduncles completely glabrous.