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FOC | Family List | FOC Vol. 9 | Rosaceae | Rubus

99. Rubus angustibracteatus T. T. Yu & L. T. Lu, Acta Phytotax. Sin. 20: 453. 1982.

狭苞悬钩子 xia bao xuan gou zi

Shrubs scandent. Branchlets grayish brown or purplish brown, pubescent, with intermixed glandular hairs initially, gradually glabrescent, with sparse, curved prickles. Leaves simple; petiole 1–1.5 cm, sparsely villous, with intermixed glandular hairs, with minute prickles; stipules caducous, free, linear or lanceolate, margin entire, villous, with intermixed glandular hairs; blade ovate-lanceolate or oblong-lanceolate, 7–12 × 2–4 cm, abaxially densely yellowish tomentose, intermixed villous along veins, with small curved prickles along midvein, adaxially glabrous, rarely slightly soft hairy along midvein, base deeply cordate, margin unevenly sharply serrate, undivided, apex acuminate. Inflorescences terminal or axillary, narrowly cymose-paniculate or short subracemes; rachis and pedicels villous, with glandular hairs, sometimes with minute prickles; bracts linear, villous, with intermixed glandular hairs, margin entire. Pedicel 5–8 mm. Flowers not more than 1 cm in diam. Calyx abaxially densely tomentose, intermixed yellowish villous and with purplish red glandular hairs; sepals erect in fruit, ovate or ovate-lanceolate, margin entire, apex acuminate. Petals suborbicular, small, much shorter than sepals, puberulous. Stamens numerous; filaments short, basally broadened and flattened. Pistils 20; apex of ovary and base of style soft hairy. Aggregate fruit with few drupelets, enclosed in calyx. Fl. May–Jun, fr. Jul–Aug.

Forests in mountainous areas; 1900--2200 m. W Sichuan.


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