Trees 10-12 m. tall with stout, seldom-branching trunks, the young branches very stout, minutely cinereous to glabrate. Mature leaves divided nearly to the center, scabridulous and irregularly pellucid-maculate above, paler and inconspicu- ously hirtellous beneath, the lobes 9-11, conspicuously contracted toward the base, broadly obtuse to rounded at the tip, the petioles rather stout, densely and minutely puberulent, with the basal pulvinus densely ferruginous-velutinous. Staminate spadices in clusters of 12-15, up to about 10 cm. long and 4 mm. thick, with slender minutely puberulent-papillate stipes about 5-10 mm. long, the spathes oblongoid, shortly apiculate, about 12-14 cm. long shortly before anthesis, minutely subarachnoid-puberulent, the common peduncle about 5-7 cm. long shortly before anthesis, minutely pilosulose. Pistillate spadices about 10 cm. long in mature fruit (our specimen fragmentary), the common peduncle about 6-7 cm. long.