Monographs Details:
Authority:

Andersson, Lennart. 1998. A revision of the genus (Rubiaceae--Cinchoneae). Mem. New York Bot. Gard. 81: 1-75.
Family:

Vochysiaceae
Scientific Name:

Erisma uncinatum Warm.
Description:

Species Description - Tree to 40 m high, to 150 cm dbh; hairs where present grayish; young twigs pubescent. Leaves opposite or in tetramerous whorls; blade coriaceous, elliptic, narrowly elliptic or narrowly obovate, 8.5- 23 X 4.5-9.5 cm, glabrous above, puberulous and glabrescent below; apex obtuse or obtuse-acuminate; base acute, attenuate; midvein immersed or sulcate above, prominent below; lateral veins 5-9 pairs, sulcate above, prominent below, angle with midvein 40-60°; tertiary veins percurrent, sinuous, perpendicular to midvein, predominantly opposite; marginal vein absent; petiole 8-13 mm long; stipules subulate, ca. 2 mm long, deciduous. Inflorescences terminal, 17-28 cm long, peduncles and lateral branches tomentose; cincinni 1.5-2 cm long, tomentose; outer bracts suborbicular, 2-3 X 2-3 mm, deciduous; inner bracts linear, 1-2 mm long; pedicels ca. 1 mm long; buds 6-9 mm long; spurred calyx-lobe ca. 7 X 8 mm long, spur uncinate-incurved, 2-2.5 mm long.; other calyx-lobes 2-3 mm long; petal blue or purple, ca. 10 X 12 mm; stamen ca. 6 mm long; style 5-6 mm long, pilose at the base. Fruits winged, bluish green, puberulous, glabrescent; major wing narrowly elliptic or oblong, 5.3-7 X 1.8-2.5 cm; second major wing elliptic, 1.3-1.8 X 2-3.5 cm.

Discussion:

Local names. Venezuela: daujen, mureillo, salado. Guyana: prumaye. Surinam: mowsi-kwari, singri- kwari. French Guiana: couali, man-onti-kouali (Para- maka language). Peru: asta-de-veado-negro. Brazil: bruto, jaboti-da-terra-firme, quarubarana, quarubaanta. Bolivia: guard. This species is characterized by the distinctly eu- camptodromous leaves, the grayish inflorescences with purple flowers, and the uncinate-incurved calyx- spur. Within the genus, this type of spur and the eucamptodromous leaves are also only found in E. fuscum, and affinities between these two species are here suggested. Erisma uncinatum is the most commonly collected species of the genus. The large number of specimens available of this species can be compared only to the number of collections of E. calcaratum, which grows in inundated forests. Erisma uncinatum has in common with the latter species the grayish inflorescences with purple flowers. Nevertheless, these two species are distinct from each other, differing markedly in their habitat, leaf morphology, and the type of fruits.

Distribution:

Guyana South America| Brazil South America|