Deutzia compacta Craib

Shrubs 2-3 m tall. Flowering branchlets brown or reddish brown, 10-12 cm, 6-10(-12)-leaved, stellate hairy. Petiole ca. 1 mm; leaf blade ovate-lanceolate or oblong-lanceolate, 1.5-6.5(-10) × 0.8-2.5(-4) cm, papery, abaxially 6-8-rayed stellate hairy, hairs of 2 types (numerous, minute, contiguous ones and less numerous, larger ones with long central rays when along leaf veins), base rounded or broadly cuneate, margin serrulate, apex acute or acuminate. Inflorescences terminal, corymbose, 5-10 cm in diam., 20-80-flowered, stellate hairy, hairs with papilliform base; pedicels 3-10 mm. Calyx tube ca. 2.5 × 2 mm; lobes broadly ovate, ca. 1.5 mm. Petals imbricate, pink, broadly obovate or suborbicular, ca. 6 × 5 mm. Outer stamens 4-5 mm; filaments 2-dentate at apex; anthers globose, stalk 1-1.5 mm. Inner stamens 3-4 mm; filaments 2-lobed or acuminate at apex; anther stalks borne at middle of filaments abaxially. Styles 3 or 4, ca. 4 mm. Capsule hemispheric, ca. 3 mm in diam. Fl. Apr-May, fr. Jun-Jul. 2n = 26*.

Himalaya (Nepal to Bhutan), N. Assam, S. Tibet, N. Burma, W. China.

S Xizang, NW Yunnan.

2100-3400 m

* Mixed forest margins, mountain slopes; 2000-4200 m.

Flowering from April to May; fruiting from June to July.

Deutzia compacta is close relative of Deutzia hookeriana, but differs from the latter in its leaf blade abaxially sparsely 6-8-rayed stellate hairy (vs. 8-12-rayed stellate hairy).

Deutzia compacta is occurring in S Xizang, NW Yunnan of China.

Shrubs 2-3 m tall. Flowering branchlets brown or reddish brown, 10-12 cm, 6-10-leaved, stellate hairy. Petiole ca. 1 mm long; leaf blade ovate-lanceolate or oblong-lanceolate, 1.5-7 cm long, 1-2.5 cm wide, papery, abaxially 6-8-rayed stellate hairy, hairs of 2 types (numerous, minute, contiguous ones and less numerous, larger ones with long central rays when along leaf veins), base rounded or broadly cuneate, margin serrulate, apex acute or acuminate. Inflorescences terminal, corymbose, 5-10 cm in diameter, 20-80-flowered, stellate hairy, hairs with papilliform base; pedicels 3-10 mm long. Calyx tube ca. 2.5 mm long, 2 mm wide; lobes broadly ovate, ca. 1.5 mm long. Petals imbricate, pink, broadly obovate or suborbicular, ca. 6 mm long, 5 mm wide. Outer stamens 4-5 mm long; filaments 2-dentate at apex; anthers globose, stalk 1-1.5 mm long. Inner stamens 3-4 mm long; filaments 2-lobed or acuminate at apex; anther stalks borne at middle of filaments abaxially. Styles 3 or 4, ca. 4 mm tall. Capsule hemispheric, ca. 3 mm in diameter.

Growing in mixed forest margins, mountains slopes; 2000-4200 m.