美丽溲疏 mei li sou shu

Deutzia acuminata Merrill; D. bartlettii Yamamoto; D. hayatae Nakai; D. pulchra var. bartlettii (Yamamoto) S. S. Ying; D. pulchra var. formosana Nakai; D. pulchra var. hayatae (Nakai) Zaikonnikova.

Shrubs or small trees 2-3 m tall. Flowering branchlets gray-brown, 10-18 cm, 4-6-leaved, stellate hairy. Petiole 0.5-1.5 cm; leaf blade abaxially grayish green, adaxially greenish, ovate-oblong or oblong, 5-12 × 2.5-4.5 cm, subleathery, abaxially densely 18-22-rayed stellate hairy, indumentum continuous, adaxially sparsely 6-12-rayed stellate hairy, veins in 8-12 pairs, reticulate veins indistinct on both surfaces, base cuneate or subrounded, margin crenate or subentire, apex acuminate. Cymose panicles ca. 15 × 3-4 cm, many flowered; pedicels ca. 8 mm. Calyx tube ca. 2.5 × 5 mm; lobes deltoid, ca. 1 × 1 mm, densely 18-22-rayed stellate hairy. Petals induplicate, white, oblong or narrowly elliptic, 10-12 × 3-4 mm. Outer stamens ca. 1 cm; filaments 2-dentate at apex, teeth horizontal, not reaching anthers; anthers borne between filament teeth, stalked, oblong. Inner stamens shorter than outer ones. Styles 5, longer than stamens. Capsule hemispheric, ca. 4 × 6-7 mm, densely stellate hairy. Fl. Mar-May, fr. Aug-Sep. 2n = 104*.

Mixed forests; 300-2500 m. Taiwan [Philippines].