Pourouma bicolor

Primary tabs

Pourouma bicolor

Description

Tree up to 15 m tall. Branchlets 3-13 mm thick, yellowish- to whitish-puberulous and with (rather) dense, brown, pluricellular hairs. Stipules 3-12(-15) cm long, caducous, white-puberulous to -subsericeous outside, densely hairy inside; petiole (2-)4-30(-46) cm long; blade subcoriaceous to chartaceous, entire, ovate to narrowly ovate to elliptic to narrowly elliptic and (6-)10-25 x (4.5-)6-10 cm or 3-lobed to 3-fid to 5-7-fid to -parted and 13-30(-42) x 13-30(-40) cm, apex acuminate (to obtuse), base (obtuse to) truncate to cordate, upper surface scabrous to scabridulous, sometimes smooth, lower surface on the main veins yellowish-appressed-puberulous, between the tertiary veins arachnoid-tomentellous; secondary veins (5-)12-25(-40) pairs, basal pair branched. Staminate inflorescences: peduncle 2.4-4 cm long; flowers solitary to loosely glomerate at the end of the branchlets, usually sessile; perianth 1-1.5 mm long; filaments shorter than the perianth. Pistillate inflorescences usually distinctly branched; peduncle 2-4 cm long; flowers (6-)10-ca. 50; pedicel 2-5 mm long; perianth 3-4 mm long; stigma discoid. Fruiting perianth ovoid to ellipsoid, ca. 1.5 cm long, scabrous; pedicel up to 0.8 cm long.

Distribution

Amazon Basin present, Pacific coastal region of Columbia present, Southern America: Ecuador (Ecuador present); Guatemala (Guatemala present)
From Guatemala to the Amazon Basin and the Pacific coastal region of Columbia and Ecuador.

Notes

five subspecies have been recognized, two of them occur in the Guianas.