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

16. Rubus bonatianus Focke, Biblioth. Bot. 19(Heft 83): 43. 1914.

滇北悬钩子 dian bei xuan gou zi

Shrubs nearly erect or prostrate. Branches dark brown or brownish, soft hairy when young, gradually glabrescent, with sparse prickles. Leaves imparipinnate, (5–)7–9-foliolate; petiole 3–8 cm, petiolule of terminal leaflet 0.5–1 cm, lateral leaflets subsessile, petiolule and rachis with soft hairs and minute prickles, sometimes with sparse, stalked glands; stipules linear, to 1 cm, soft hairy; blade of leaflets rhombic, ovate-lanceolate, or oblong, 2–5 × 1–2.5 cm, abaxially densely gray tomentose, adaxially minutely appressed pubescent, base broadly cuneate to rounded, margin incised, sharply doubly serrate, apex acuminate. Inflorescence 1-flowered. Pedicel 1–2 cm, with soft hairs or sparse, stalked glands. Flowers 2–3 cm in diam. Calyx abaxially densely minutely pubescent; sepals ovate-lanceolate or triangular-lanceolate, to 1.7 cm, apex long caudate, inner sepals gray tomentose marginally. Petals white, together with calyx turning red upon withering, spatulate, ca. 1.5 cm × 8–9 mm, slightly shorter than sepals, both surfaces minutely pubescent, base broadly clawed. Stamens numerous, shorter than petals; filaments linear, with somewhat broadened base. Pistils many, slightly longer than stamens; ovary and basal part of style long white tomentose. Fruit unknown. Fl. summer.

Montane valleys, grassy places, stream sides, moist slopes; 3200--3500 m. Sichuan, N Yunnan.


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