3. Osteomeles subrotunda K. Koch, Ann. Mus. Bot. Lugduno-Batavum. 1: 250. 1864.
圆叶小石积 yuan ye xiao shi ji
Shrubs evergreen, dense, ca. 2 m tall. Branchlets grayish brown, terete, slender, densely grayish white villous when young, glabrescent; buds ovoid, small, subglabrous, apex obtuse. Leaves with 7–15 pairs of leaflets; stipules caducous, lanceolate, membranous, apex acuminate; petiole 3–7 mm, pubescent to glabrous, petiolule very short; leaflet blade suborbicular or obovate-oblong, (3–)4–6 × (1.5–)2–3 mm, abaxially densely grayish white villous, adaxially sparsely villous, or both surfaces glabrous to subglabrous, base rounded or subrounded, margin entire, apex obtuse, mucronulate or apiculate. Corymb 2–3.5 cm in diam., many flowered; peduncle villous; bracts caducous, linear-lanceolate, membranous, pubescent. Pedicel 3–5 mm, villous. Flowers ca. 1 cm in diam. Hypanthium campanulate, abaxially pubescent. Sepals triangular-lanceolate, abaxially pubescent, adaxially subglabrous, margin entire, apex acute. Petals oblong, 5–8 × 3–5 mm. Stamens 20. Styles glabrous, nearly as long as stamens. Pome bluish black, subglobose, 6–12 mm in diam.; fruiting pedicel 5–8 mm, slightly pubescent; sepals persistent. Fl. Apr–Jun, fr. Jul–Sep.
Mixed forests, scrub on mountain summits, roadsides; 200--500 m. N Guangdong (Renhua Xian) [Japan (Ryukyu Islands)].
