冠萼花楸 guan e hua qiu

Trees to 10 m tall. Branchlets brown or purplish brown, terete, initially densely tomentose, gradually glabrescent, with many grayish white lenticels; buds narrowly ovoid, 5–8 mm, apex acute to shortly acuminate; scales several, reddish brown. Leaves simple; petiole (0.5–)1–2 cm, sparsely tomentose or subglabrous; leaf blade dark green adaxially, oblong-elliptic or oblong-ovate to ovate-lanceolate, 7–13 × 4–6 cm, lateral veins (9–)12–16 pairs, nearly parallel and terminating in marginal teeth, distinctly raised abaxially and impressed adaxially, abaxially densely gray tomentose, sometimes glabrescent, midvein and lateral veins initially tomentose, glabrate, adaxially glabrous, base broadly cuneate to rounded, margin unevenly minutely serrate to doubly serrate, apex acuminate. Compound corymbs terminal, 3–4 × 4–5 cm, 20–30-flowered; rachis and pedicels densely grayish white tomentose, sometimes glabrescent. Pedicel 3–5 mm. Flowers 8–11 mm in diam. Hypanthium campanulate, abaxially grayish white tomentose. Sepals ovate-triangular, ca. 2 mm, apex acute. Petals white, obovate or suborbicular, 3–4 mm, adaxially tomentulose, apex obtuse. Stamens ca. 20, nearly as long as petals. Styles 2 or 3, not exceeding stamens, glabrous or puberulent, connate at base. Fruit red, subglobose, 8–10 mm in diam., initially tomentulose, 2- or 3-loculed, lenticellate; sepals persistent; seeds brown, ovoid or subglobose, compressed. Fl. Apr–May, fr. Aug–Sep.

Mixed forests in ravines, forests on slopes, river banks, mountain regions; 1800--3200 m. W Guizhou, Xizang, N Yunnan [N Myanmar].

Lower Taxa

• Sorbus coronata var. ambrozyana (C. K. Schneider) L. T. Lu
• Sorbus coronata var. coronata
• Sorbus coronata var. glabrescens T. T. Yu & L. T. Lu