栏目

宝兴悬钩子Rubus ourosepalus Card.

宝兴悬钩子Rubus ourosepalus Card.

别名:

科名:蔷薇科 Rosaceae

属名:悬钩子属 Rubus

《中国植物志》第37卷205页
  179.宝兴悬钩子 图版28: 12-14
  Rubus ourosepalus Card. in Lecomte, Not. Syst. 3: 290. 1914.
  藤状小灌木,高0.4-1米;枝具针刺、腺毛和疏柔毛。单叶,心状宽卵形,长5-11厘米,宽3.5-8厘米,顶端急尖至渐尖,基部心形,两面无毛或几无毛,沿叶脉疏生针刺,边缘有尖锐锯齿和稀疏腺毛,不分裂或浅裂,裂片具急尖头;叶柄长2.5-5.5厘米,被针刺、腺毛和柔毛;托叶离生,长达1厘米,掌状深裂几达基部,裂片线状披针形,有腺毛和柔毛。花1-4朵,生于枝顶成花序或单花腋生;花梗长2-4厘米,被针刺、腺毛和柔毛;苞片深裂至基部,具2-3枚线形或钻形裂片;花直径1-1.5厘米;花萼外具针刺、腺毛和柔毛;萼片三角状披针形,长达1.4厘米,顶端钻状长渐尖,全缘,稀2裂,在果期直立;花瓣卵形,长5-7毫米,顶端急尖,基部几无爪,甚短于萼片,白色;雄蕊多数,排成多列,花丝宽扁,长于雌蕊;雌蕊多数,子房幼时在顶端和花柱基部有细柔毛,逐渐脱落无毛。果实干燥,半球形,红色,包藏在宿存花萼内;核具皱纹或平滑。花期6-7月,果期8-9月。
  产四川(宝兴)。生海拔3000米左右的山地灌丛中。
  本种和多齿悬钩子R. polyodondus Hand.-Mazz.近缘,区别在于枝、叶柄、花梗和花萼均有腺毛;叶片心状宽卵圆形,顶端急尖至渐尖,两面无毛或几无毛;花梗长2-4厘米。
形态特征:藤状小灌木,高0.4—1米;枝具针刺、腺毛和疏柔毛。单叶,心状宽卵形,长5--11厘米,宽3.5—8厘米,顶端急尖至渐尖,基部心形,两面无毛或几无毛,沿叶脉疏生针刺,边缘有尖锐锯齿和稀疏腺毛,不分裂或浅裂,裂片具急尖头;叶柄长2.5—5.5厘米,被针刺、腺毛和柔毛;托叶离生,长达1厘米,掌状深裂几达基部,裂片线状披针形,有腺毛和柔毛。-花1—4朵,生于枝顶成花序或单花腋生;花梗长2—4厘米,被针刺、腺毛和柔毛;苞片深裂至基部,具2—3枚线形或钻形裂片;花直径1—1.5厘米;花萼外具针刺、腺毛和柔毛;萼片三角状披针形,长达1.4厘米,顶端钻状长渐尖,全缘,稀2裂,在果期直立;花瓣卵形,长5--7毫米,顶端急尖,基部几无爪,甚短于萼片,白色;雄蕊多数,排成多列,花丝宽扁,长于雌蕊;雌蕊多数,子房幼时在顶端和花柱基部有细柔毛,逐渐脱落无毛。果实干燥,半球形,红色,包藏在宿存花萼内;核具皱纹或平滑。 花期6--7月,果期8—9月。
产地分布:产四川(宝兴)。生海拔3000米左右的山地灌丛中。
本种提示:本种和多齿悬钩子R.polyodondus Hand.—Mazz.近缘,区别在于枝、叶柄、花梗和花萼均有腺毛;叶片心状宽卵圆形,顶端急尖至渐尖,两面无毛或几无毛;花梗长2—4厘米。180.多齿悬钩子(拉汉种子植物名种)

《Flora of China》 Vol. 9 (2003)
Rubus ourosepalus  Cardot
宝兴悬钩子   bao xing xuan gou zi
Shrubs lianoid, small, 0.4–1 m tall. Branchlets brown or reddish brown, with needle-like prickles, glandular hairs, and sparse, soft hairs. Leaves simple; petiole 2.5–5.5 cm, with needle-like prickles, glandular hairs, and soft hairs; stipules free, 7–10 mm, palmatiparted nearly to base; lobes linear-lanceolate or linear, with glandular hairs, intermixed with soft hairs; blade broadly ovate, 5–11 × 3.5–8 cm, both surfaces glabrous or subglabrous, with sparse, needle-like prickles along veins, base cordate, margin undivided, rarely lobed, sharply serrate, with sparse, glandular hairs, apex acute to acuminate. Inflorescences terminal and axillary, 1-flowered or flowers in clusters of 2–4; bracts 5–8 mm, palmatipartite nearly to base; lobes linear or subulate, soft hairy and stipitate glandular. Pedicel 2–4 cm, with needle-like prickles, stipitate glandular and soft hairy. Flowers 1–1.5 cm in diam. Calyx abaxially with needle-shaped prickles, stipitate glands, and soft hairs; tube pelviform; sepals erect in fruit, triangular-lanceolate, 0.8–1.4 cm, margin entire, rarely 2-lobed, apex subulate-acuminate. Petals white, ovate, 5–8 × 4–5 mm, base with claws nearly absent, apex acute. Stamens many, arranged in several whorls; filaments broad, flat. Pistils shorter than stamens; apex of ovary and base of style thinly pubescent when young, gradually glabrescent. Aggregate fruit red, dry, semiglobose, enclosed in persistent calyx; pyrenes rugose or smooth. Fl. Jun–Jul, fr. Aug–Sep.
Montane thickets; ca. 3000 m. C Sichuan (Baoxing Xian).

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