台湾血桐 tai wan xue tong

Macaranga dipterocarpifolia Merrill.

Shrubs or small trees. Branches glabrous. Stipules lanceolate, ca. 8 mm, deciduous; petiole 5-10 cm; leaf blade ovate, 13-20 × 8-12 cm, thinly leathery, abaxially sparsely glandular scaly, base subtruncate, shallowly peltate, or slightly cordate, with 2 glands, margin repand-serrulate, apex acuminate, glabrous; veins palmate. Male inflorescences branched, 10-15 cm, glabrous; bracts triangular-lanceolate, 6-8 mm, with 5-7 disciform glands, or spatulate, 3-4 mm, with 1 disciform gland. Male flowers many per bract; sepals 4; stamens 5-7. Female inflorescences branched, 10-14 cm; bracts spatulate, with paired disciform gland. Female flower 1-3 per bract; sepals 3 or 4, ca. 1 mm; ovary 2-locular; styles 2, ca. 1 mm, basally connate. Capsule 2-locular, sparsely glandular-scaly. Fl. May-Jun.

Littoral forests; below 100 m. Taiwan (Huoshao Dao, Lan Yu) [Indonesia, Philippines].