Pourouma melinonii subsp. melinonii

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Pourouma melinonii subsp. melinonii


Tree up to 20m tall. Branchlets 3-10 mm thick, with dense, dark purple to dark brown, pluricellular hairs or also sparsely puberulous with unicellular hairs. Stipules 8-12 cm long, caducous, white- to yellow-puberulous and with dense, dark purple to dark brown, pluricellulair hairs outside, glabrous inside; petiole 6-17 cm long, sparsely appressed-puberulous; blade coriaceous, entire to 3-lobed, ovate to narrowly ovate, 8-26 x 5-19 cm, apex short-acuminate (to acute), base (obtuse to) truncate to subcordate, upper surface smooth, sparsely puberulous to subsericeous on the primary vein, lower surface yellow-appressed-puberulous to subsericeous on the (main) veins, between the tertiary veins, mostly only in the areoles white-arachnoid-tomentellous; secondary veins 10-14 pairs, the basal pair branched. Staminate inflorescences: peduncle 2.5-3 cm long; flowers densely glomerate in globose heads (but a few flowers solitary), sessile (or pedicellate); tepals connate; filaments longer than the tepals. Pistillate inflorescences, repeatedly branched; peduncle 3-7 cm long; flowers diffusely distributed in the inflorescence; pedicel 2-4 mm long; perianth 4-5 mm long; stigma discoid. Fruiting perianth narrowly ovoid to oblongoid, ca. 1.8 cm long, puberulous; pedicel up to 1.2 cm long.


Amazon Basin present, French Guiana present, Grote Zwiebelzwamp present, Guianas present, Guyana present, Jodensavanne present, Marowijne River present, Pakaraima Mts present, Southern America: Venezuela (Venezuela present), Upper Mazaruni River present, eastern Surinam present
Amazon Basin and the Guianas, and the adjacent part of Venezuela; Guyana (Pakaraima Mts. and Upper Mazaruni River); eastern Surinam (Marowijne River, Grote Zwiebelzwamp, and Jodensavanne; in French Guiana (common).


A secound subspecies, subsp. glabrata C.C. Berg & van Heusden, is found in northern and western Colombia and Panama.