61. Sorbus tsinlingensis C. L. Tang, Fl. Tsinling. 1(2): 608. 1974.
秦岭花楸 qin ling hua qiu
Aria tsinlingensis (C. L. Tang) H. Ohashi & H. Iketani.
Trees 5–8 m tall. Branchlets reddish brown when young, blackish brown when old, terete, glabrous or subglabrous, sparsely orbicular-lenticellate; buds ovoid, 4–8 mm, glabrous, apex acute; scales several, reddish brown. Leaves simple; petiole 1.2–2 cm, grayish white tomentose; leaf blade pale green abaxially, dark green adaxially, oblong or ovate-oblong, 7–12 × 4–6 cm, subleathery, lateral veins 8–10 pairs, usually arched and anastomosing toward margin, abaxially grayish white tomentose, adaxially sparsely tomentulose, base rounded, rarely subcordate, margin unevenly serrate, apex acute or shortly acuminate. Compound corymbs 4–6 cm in diam., densely 20–35-flowered; rachis and pedicels densely grayish white tomentose. Pedicel 5–10 mm. Flowers 1–1.2 cm in diam. Hypanthium campanulate, ca. 2.5 mm in diam., abaxially densely grayish white tomentose. Sepals triangular-lanceolate, 2–2.5 mm, tomentose along margin. Petals white, suborbicular, 4–5 mm in diam., base shortly clawed. Stamens 20, 2–3 mm; anthers yellow. Ovary tomentose apically; styles 2, not exceeding stamens, glabrous, connate basally. Fruit red, obovoid-oblong or oblong-ellipsoidal, 1.3–1.5 cm × 7–9 mm, sometimes sparsely lenticellate, with an annular scar; seeds reddish brown, narrowly ovoid, 5–6 mm, somewhat compressed. Fl. May, fr. Sep–Oct.
Mixed forests in mountain regions; 1400--1800 m. S Gansu (Tianshui), S Shaanxi (Taibai Shan).