栏目

小叶悬钩子Rubus taiwanicola Koidz. et Ohwi

小叶悬钩子Rubus taiwanicola Koidz. et Ohwi

别名:

科名:蔷薇科 Rosaceae

属名:悬钩子属 Rubus

《中国植物志》第37卷083页
  43.小叶悬钩子(台湾木本植物志)台湾莓(台湾植物志)图版8:3-5
  Rubus taiwanicolus Koidz. et Ohwi in Journ. Jap. Boc. 12: 657. 1903“taiwanicola”; 刘业经, 台湾木本植物志197.1972; Liu et Su in Fl. Taiwan 3: 128. 1977.——R. elegans Hayata in Bot. Mag. Tokyo 2: 74. 1906; id. in journ.Coll. Sci. Univ. Tokyo 25(19): 79. t. 4. 1908 (Fl. Mont. Form.) ; id. in Icon. Pl. Formos. 7: 18. f. 13a. 1918: Li in Woody Fl. Taiwan 312. 1963.
  矮小半灌木,高约10厘米。小叶9-15枚,椭圆形或长圆形,侧生小叶有时倒卵形,长7-15毫米,宽5-9毫米,顶端急尖或圆钝,基部楔形,两面无毛,稀仅下面沿中脉具疏柔毛,边缘自近中部以上具锐锯齿;叶柄长1-2厘米,顶生小叶柄长2-4毫米,侧生小叶无柄或几无柄,均无毛,具钩状小皮刺,叶轴带紫红色;托叶披针形,长达1厘米,无毛;花单生或成对;花梗长2-4厘米,无毛,具钩状小皮刺;苞片线状披针形,短小,长3-5毫米,无毛;花直径达2厘米;花萼外面无毛或具疏柔毛;萼片卵形或三角状卵形,长6-8毫米,宽2-4毫米,顶端短尾尖,边缘稍具绒毛,在果期常直立;花瓣宽卵形至近圆形,稀长圆形,白色,长7-8毫米,宽5-6毫米,顶端圆钝,基部有短爪;花丝线形或稍宽扁,长于花柱;花柱与子房均无毛。果实球形,红色,无毛。花期6-7月,果期8-9月。
  产我国台湾。生海拔1500-3000米向阳山地。
形态特征:矮小半灌木,高约10厘米。小叶9—15枚,椭圆形或长圆形,侧生小叶有时倒卵形, 长7一15毫米,宽5—9毫米,顶端急尖或圆钝,基部楔形,两面无毛,稀仅下面沿中脉具疏 柔毛,边缘自近中部以上具锐锯齿;叶柄长1—2厘米,顶生小叶柄长2—4毫米,侧生小叶 无柄或几无柄,均无毛,具钩状小皮刺,叫·轴带紫红色;托叶披针形,长达1厘米,无毛;花 单生或成对;花梗长2—4厘米,无毛,具钩状小皮刺;苞片线状披针形,短小,长3—5毫 米,无毛;花直径达2厘米;花萼外面无毛或具疏柔毛;萼片卵形或三角状卵形,长6—8毫 米,宽2—4毫米,顶端短尾尖,边缘稍具绒毛,在果期常直立;花瓣宽卵形至近圆形,稀长 圆形,白色,长7一8毫米,宽5—6毫米,顶端圆钝,基部有短爪;,花丝线形或稍宽扁,长于 花柱;花柱与子房均无毛。果实球形,红色,无毛。 花期6一7月,果期8—9月。
产地分布:产我国台湾。生海拔1500—3000米向阻山地。
参考文献:Rubu?Taiwanieolus Koid?c{Ohwi I(1 J0ur?Jap·Boぴ1R65W1903"taiwanicola"; 刘业经,台湾木本植物志197.1972;Liu ct Su inFl.Taiwan 3:128.·1977.--R.elegans Hayata in Bot.Mag·Tokyo 2:74.1906;id,in Journ.Coll.Sci .Univ.,Tokyo 25(19):79. T.4. 1908 (F1. Mont. Form.);id . In lcon. Pl. Formos. 7:1.8.·f.13a. 1.918;Li in Woody F1.Taiwan 312.1963.
亚组概述:Subsect.Pungentes;(Fo.cke):yu et lu 植物分类学报20 (3): 300.1982.——Sect.Pungentes Focke, Bibl.Bot.72(2):160.1911 et 83:40. 1914. P. P·——Sect. Idaeanthi Focke,1.C.72(2):17 .1911:et.,83:43:1914 .P.p—— Subgen.Cylactis Focke,1.C.72(1):23.1910 -et 83:16·,1914 .p.p 本亚组有下列14种。

《Flora of China》 Vol. 9 (2003)
Rubus taiwanicola  Koidzumi & Ohwi
小叶悬钩子   xiao ye xuan gou zi
Rubus elegans Hayata (1906), not P. J. Mueller (1858), nor Utsch (1885), nor Sudre (1898).
Subshrubs ca. 10 cm tall. Stems ascending, brown, glabrescent. Leaves imparipinnate, to 10 cm, 9–15-foliolate; petiole 1–2 cm, petiolule of terminal leaflet shorter, 2–4 mm, lateral leaflets sessile or subsessile, petiolule and purplish red rachis glabrous, with curved minute prickles; stipules lanceolate or linear-lanceolate, 6–10 mm, glabrous; blade of leaflets elliptic to broadly oblong, lateral leaflets sometimes obovate, 0.7–1.5 cm × 5–9 mm, both surfaces glabrous, only sparsely pubescent along midvein abaxially, base cuneate, margin sharply serrate above middle, becoming entire toward base, apex acute or obtuse. Inflorescences with flowers solitary or in pairs; bracts linear-lanceolate, 3–5 mm, glabrous. Pedicel 2–4 cm, glabrous, with curved minute prickles. Flowers 1–2 cm in diam. Calyx abaxially glabrous or sparsely soft hairy; sepals erect in fruit, ovate or triangular-ovate, 6–8 × 2–4 mm, margin slightly tomentose, apex shortly caudate. Petals white, broadly ovate to suborbicular, rarely oblong, 7–10 × 5–6 mm, glabrous or sparsely hairy, base shortly clawed, apex obtuse or rounded. Stamens many, shorter than petals; filaments linear or somewhat broadened and flattened. Pistils numerous, shorter than stamens; style and ovary glabrous. Aggregate fruit red, subglobose, 7–9(–12) mm in diam., glabrous. Fl. Jun–Jul, fr. Aug–Sep. 2n = 14*.
Mountains; 1500--3000 m. C Taiwan.

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