Cremastosperma pendulum (Ruiz & Pav.) R. E. Fr.

Tree or shrub 4–10 m tall; young twigs and petioles glabrous. Leaves: petioles (3–)6–13 by 1–3 mm; lamina narrowly elliptic to elliptic, 7–30 by 3.5–10 cm (index 2.9–4.2), chartaceous, drying green (darker above), glabrous above, sparsely covered with appressed whitish hairs to 0.2 mm long particularly on veins or glabrous below, base acute, apex acuminate (acumen 15–25 mm long), primary vein 1–2 mm wide at widest point, deeply grooved in basal half, secondary veins 7–10, intersecondary veins often 1(–2), distance between from 9–16 mm at the base to 11–25 mm closer to the apex, angles with primary vein from 50–60° at the base to 45–50° closer to the apex, sometimes branching, forming distinct loops, smallest distance between loops and margin 2–4 mm, tertiary veins more or less percurrent. Inflorescence of single, solitary flowers; peduncles 0.5–1.5 by ca. 0.5 mm (in flower), 3–5 by 0.8–1 mm (in fruit), sparsely covered with appressed whitish hairs <0.1 mm long or glabrous; pedicels 28–70 by 0.3–0.5 mm at the base, to 1 mm at the apex (in flower), 50–70 by 0.5–1 mm at the base, to 1.5 mm at the apex (in fruit), green or purple in vivo, glabrous; 1 or 2 lower bracts, deltate, ca. 0.5 by 0.5 mm, acute, soon falling off, rather densely covered with appressed whitish hairs <0.1 mm long; upper bract attached halfway along pedicel, elliptic or deltate, 0.5–1 by 0.5–1 mm, acute or obtuse, sparsely covered with appressed whitish hairs <0.1 mm long or glabrous; closed flower buds depressed ovoid, remaining closed (or nearly so) throughout development; flowers green maturing to yellow in vivo, black in sicco, sepals and petals glabrous; sepals fused for basal 0.5 mm, elliptic, appressed (particularly in bud) or recurved, ca. 2 by 1.5 mm, obtuse, soon falling off; outer petals ovate, 5–6 by 3–4 mm, inner petals ovate, ca. 3.5 by 2 mm; androecium ca. 4 mm diam., connective appendage 0.5–0.8 mm wide; gynoecium ca. 1 mm diam., glabrous. Monocarps 6–11, ellipsoid, slightly asymmetrical, 10–13 by 7–9 mm, monocarps and stipes green maturing to dark reddish-brown in vivo, medium to dark brown in sicco, with an excentric apicule; stipes 9–15 by 1–2 mm; fruiting receptacle depressed ovoid, 3–6 mm diam., monocarps, stipes and receptacle glabrous. Seeds ellipsoid, reddish-brown, pitted, ca. 13 by 7 mm, raphe sunken, regular.

Peru (Huánuco, Pasco, Ucayali).