Cecropia albicans Trécul
Tree: to 20 m tall; branches (very) short and departing at angles of ca. 90° at the apex of the tree or longer and then departing in acute angles at the lower part of the tree. Leafy twigs 3-10 cm thick, blackish or reddish to green and then with a bluish waxy layer, densely (sub)hirsute or (sub)glabrous. Lamina coriaceous; ca. 25 x 25 cm to 95 x 95 cm; the segments 11-13, the upper ones in deeply incised laminas oblong (to subovate), the incisions down to 4/10 or to 8/10; apices acute to subacuminate; upper surface smooth, subglabrous or with ± dense arachnoid indumentum; lower surface rather sparsely to densely tomentose on the veins, arachnoid indumentum in the areoles and on the smaller veins or also on the main veins; lateral veins in the free part of the mid segment 10-16 pairs, submarginally loop-connected, in the lower part often not distinctly so, often ± branched;
Petiole: ca. 30-75 em long, puberulous and with sparse to rather dense arachnoid indumentum or subglabrous;
Trichilia absent or present and fused, the brown indumentum intermixed with short to rather long white to pale brown (unicellular) hairs;
Stipules ca. (10-)25-45 cm long, red to pinkish, sometimes with a bluish waxy layer, with only moniliform brown pluricellular hairs outside, glabrous inside; terminal buds inflated.
Staminate inflorescences in pairs, erect, usually subtended by pinkish or greenish, caducous bracts to 4 cm long, attached at or ca. 1 ern above the base of the peduncle; peduncle 3-7 cm long, (sub)glabrous; spathe ca. 4-10 cm long, yellowish to pinkish, with only moniliform brown pluricellular hairs outside, glabrous inside; spikes (7-) 15-24,3.5- 9 X 0.3-0.7 cm, sessile or with stipes 0.2-0.3 cm long and sparsely hairy; rachis hairy. Staminate flowers: perianth tubular, 1-1.5 mm long, sparsely and minutely puberulous on the lower part of the apex, the apex plane, ± clearly 2-lobed; filaments flat; anthers ca. 0.8 mm long, appendiculate, detached at anthesis, remaining attached to the filament by 2 filiform connections between the connective and the upper margin of the filament.
Pistillate inflorescences in pairs, erect, usually subtended by pinkish, caducous bracts to 4 cm long, attached at or ca. I em above the base of the peduncle; peduncle 1.5-2.5 (or to 14) cm long, subglabrous; spathe 5-11 em long, the color and indumentum as in the staminate inflorescence; spikes 4- 7 (-9), 4-10 X 1-1.2 cm, to 15 X 2 cm in fruit, sessile; rachis glabrous. Pistillate flowers: perianth ca. 2 mm long, with arachnoid indumentum below the apex outside, also in the lower part of the style channel inside, the apex ± convex, punctate to submuriculate; style rather long, straight, unilaterally hairy; stigma comose.
Fruit oblongoid, ca. 2.5 mm long, ± tuberculate.
Distribution: Peru (Pasco to San Martin), in cloud forest, at 2200-2500 m.
(C.C.Berg & P.Franco, 2005)