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

91. Rubus lineatus Reinwardt in Blume, Bijdr. Fl. Ned. Ind. 17: 1108. 1826.

绢毛悬钩子 juan mao xuan gou zi

Shrubs 1–2 m tall, much branched. Branchlets brownish to grayish brown, terete, with sparse, minute prickles, with dense appressed silvery-gray or yellowish gray silky hairs, glabrescent. Leaves palmately compound, 3–5-foliolate; petiole 2–5 cm, lateral leaflets sessile or subsessile, sericeous; stipules caducous, free, lanceolate or ovate-oblong, 1.2–2 cm, sometimes to 2–3 cm on sterile branchlets, often broad, membranous, abaxially densely sericeous, not divided; blade of leaflets oblong or lanceolate to oblanceolate, 8–12 × 1.5–3.5 cm, pinnately veined with (20–)30–50 pairs of parallel lateral veins terminating at margin, midvein and lateral veins prominent abaxially, impressed adaxially, abaxially densely silvery-gray or yellowish gray appressed-sericeous, adaxially glabrous or long hairy along midvein, base cuneate, margin sharply serrate to doubly serrate, apex acuminate to caudate. Inflorescences terminal and in axils of apical leaves, cymose panicles, ca. 15–20-flowered, sometimes flowers in clusters in leaf axils; rachis and pedicels sericeous or glabrescent; bracts lanceolate or ovate-oblong, smaller than stipules, sericeous. Pedicel 1–2 cm. Flowers ca. 1.5 cm in diam. Calyx abaxially densely silvery-gray or yellowish gray sericeous or glabrescent; sepals ovate-triangular to ovate-lanceolate, 6–12 × 3–7 mm, margin entire, apex acuminate to caudate. Petals white or greenish white, elliptic or obovate, much smaller than sepals, glabrous, base not distinctly clawed. Stamens ca. 50–150, glabrous, somewhat shorter or ca. as long as petals. Pistils ca. 80–100 or more, shorter than stamens; apical part of ovary and basal part of style long hairy. Aggregate fruit orange to red at maturity, semiglobose or globose-ovoid, 7–10 mm in diam., sericeous when young, glabrescent; pyrenes distinctly rugose. Fl. Jul–Aug, fr. Sep–Oct.

Slopes, valleys, forests, forest margins, fallow fields; 1400--3000 m. Xizang, Yunnan [Bhutan, NE India, Indonesia, Malaysia, Myanmar, Nepal, Sikkim, N Vietnam].

1 Pedicel and abaxial surface of calyx with deciduous sericeous hairs.   91c var. glabrescens
+ Pedicel and abaxial surface of calyx with dense, persistent sericeous hairs.   (2)
2 (1) Blade of leaflets oblong or lanceolate to oblanceolate.   91a var. lineatus
+ Blade of leaflets narrowly lanceolate.   91b var. angustifolius

Lower Taxa


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