Trees to 15 m. tall, sometimes epiphytic when young, glabrous throughout except for the inflorescence, the branchlets stout, terete, rugose. Leaves simple, ovate, elliptic, lanceolate or obovate, 10-35 cm. long, 4-25 cm. broad, acute or acuminate at the apex, cuneate to subcordate at the base, entire, the basal lateral veins in 1 or 2 pairs, conspicuous; petioles to 30 cm. long. Inflorescence panicu-late, stellate-puberulent or glabrous, the primary peduncle plus rhachis 6-20 (-30) cm. long, the bracts inconspicuous, the secondary peduncles and rhachises 4-12 cm. long, the floriferous peduncles 0.5-2.0 cm. long. Staminate heads globose or slightly elongate, flowers 10-25 per head, the bracteoles deltoid or ovate; calyx about 1 mm. long, the limb undulate; petals 5, oblong, 2.0-2.5 mm. long, about 1 mm. broad; filaments about 4 mm. long, anthers about 1.25 mm. long, 0.75 mm. broad; styles 1 or 2. Bisexual heads 5-to 12-flowered; calyx, corolla and andro-ecium resembling the staminate flowers; styles 5-10; fruit subglobose, 5-8 mm. in diameter, the styles recurved, deciduous, the seeds usually few.
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