Pourouma villosa

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Pourouma villosa


Tree up to 30m tall. Branchlets 4-15 mm thick, yellow(ish)-puberulous to -subhirsute or sometimes -villous, and with dense, brown, pluricellular hairs. Stipules 3-14 cm long, caducous, yellow(ish)-subsericeous to -subhirsute or -villous outside, mostly hairy, sometimes (sub)glabrous inside; petiole 5-24 cm long, hirtellous to subhirsute or sometimes villous; blade (sub)coriaceous, 3-(or 5)-lobed to -parted, occasionally entire, 10-31 x 8-28(-40) cm, apex acuminate, base cordate to obtuse, upper surface smooth, yellow-puberulous to -hirtellous on the primary vein, lower surface on the veins subsericeous to subhirsute or to hirtellous, on the smaller veins to puberulous, between the tertiary veins arachnoid-tomentellous; secondary veins (5-)10-16 pairs, basal pair branched. Staminate inflorescences: peduncle 2-7 cm long; flowers rather densely glomerate, sessile; tepals (almost) free; filaments shorter than the tepals. Pistillate inflorescences branched; peduncle 2-11 cm long; flowers ca. 15-30, sessile or up to 6 mm long pedicellate; perianth ca. 4 mm long; stigma discoid. Fruiting perianth (sub)ovoid, ca. 2 cm long, sparsely puberulous and with dense, brown to purplish, pluricellular hairs; pedicel up to 1.6 cm long.


French Guiana present, Southern America: Brazil North (Amapá present, Amazonas present, Pará present, Rondônia present), Surinam present
Surinam, French Guiana and Brazil (Amapa, Amazonas, Para, and Rondonia).


The form with villous indument on the twigs, stipules, and petioles is known by the type collection from French Guiana and a few collections from Brazil (Amazonas, Para, and Rondonia).