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厚叶悬钩子Rubus crassifolius Yü et Lu

厚叶悬钩子Rubus crassifolius Yü et Lu

别名:托盘;蓬蘽;山楂叶悬钩子;厚叶莓;

科名:蔷薇科 Rosaceae

属名:悬钩子属 Rubus

《中国植物志》第37卷183页
  149.厚叶悬钩子 图版24: 5-6
  Rubus crassifolius Yu et Lu,植物分类学报20 (4): 460. pl. 3. f. 4. 1982.
  蔓性或攀援小灌木,高达0.5米;枝暗褐色,圆柱形,密被黄棕色绢状长柔毛,无刺。单叶,厚,革质,近圆形,直径3-7厘米,顶端圆钝,稀急尖,基部心形,两面均具绢状长柔毛,但上面毛较稀,具明显细皱纹,下面毛很密,叶脉棕褐色,基部具掌状5出脉,侧脉2-3对,边缘微波状或3-5浅裂,裂片圆钝,稀稍尖,具圆钝浅锯齿;叶柄长2-3.5厘米,被黄棕色绢状长柔毛;托叶离生,近圆形或宽卵形,长(1)1.5-2厘米,宽几与长相等,棕色,疏生绢状长柔毛,边缘条裂,裂片披针形。花常单生,稀2-3朵,顶生或腋生;花梗长约1厘米,被黄棕色绢状长柔毛;苞片与托叶相似;花直径1.5-2厘米;花萼长达1.5厘米,外面密被黄棕色绢状长柔毛;萼片叶状,卵形,外萼片较宽大,顶端掌状深裂或具缺刻状锯齿,内萼片较狭,顶端急尖,全缘或有少数锯齿;花瓣宽卵形,顶端圆钝或微凹,边缘波状,基部有短爪;雄蕊多数,排成2-3列,内层雄蕊短而花丝较细;雌蕊很多,短于雄蕊,子房光滑无毛。果实近球形,红色,无毛,由多数小核果组成,苞藏于叶状宿萼内;核具皱纹。花期6-7月,果期8月。
  产江西、湖南、广东、广西。生于山顶草地、高山岩隙间或密林旁,海拔1600-2000米。
  本种花单生,稀2-3朵;叶片下面,花序和花萼均被黄棕色绢状长柔毛;托叶近圆形或宽卵形,长1.5-2厘米,与其他种类容易区别。
形态特征:蔓性或攀援小灌木,高达0.5米;枝暗褐色,圆柱形,密被黄棕色绢状长柔毛,无刺。单叶,厚,革质,近圆形,直径3--7厘米;顶端圆钝,稀急尖,基部心形,两面均具绢状长柔毛,但上面毛较稀,具明显细皱纹;下面毛很密,叶脉棕褐色,基部具掌状5出脉,侧脉2—3对,边缘微波状或3—5浅裂,裂片圆钝,稀稍尖,具圆钝浅锯齿;叶柄长2-3,5厘米,被黄棕色绢状长柔毛;托叶离生,近圆形或宽卵形,长(1)1.5-2厘米,宽几与长相等,棕色,疏生绢状长柔毛,边缘条裂,裂片披针形。花常单生,稀2.一3朵,顶生或腋生;花梗长约1厘米,被黄棕色绢状长柔毛;苞片与托叶相似;花直径1.5—2厘米;花萼长达1.5厘米,外面密被黄棕色绢状长柔毛;萼片叶状,卵形,外萼片较宽大,顶端掌状深裂或具缺刻状锯齿,内萼片较狭,顶端急尖,全缘或有少数锯齿;花瓣宽卵形,顶端圆钝或微凹,边缘波状,基部有短爪;雄蕊多数,排成2—3列,内层雄蕊短而花丝较细;雌蕊很多,短于雄蕊,子房光滑无毛。果实近球形,红色,无毛,由多数小核果组成,苞藏于叶状宿萼内;核具皱纹。 花期6一7月,果期8月。
产地分布:产江西、湖南、广东、广西。生于山顶草地、高山岩隙间或密林旁,海拔1600—2000米。
本种提示:本种花单生,稀2—3朵;叶片下面,花序和花萼均被黄棕色绢状长柔毛;托叶近圆形.或宽卵形,长,1.5一2厘米,与其他种类容易区别。 ·
参考文献:Rubus crassifolius Y6 er Lu,·植物分类学报20(4): 460;pl 3.f. 4.1982.
亚组概述:Subsect.Fuscifolii Y6 et Lu,植物分类学报20(4):458.1982——Sect.Moluccani Focke,Bibl.Bot.?2(1):71.1910 et 83:28.1914·p.P. 本亚组有下列7种。

《Flora of China》 Vol. 9 (2003)
Rubus crassifolius  T. T. Yu & L. T. Lu
厚叶悬钩子   hou ye xuan gou zi
Shrubs scrambling or scandent, to 0.5 m tall. Branchlets dark brown, terete, densely yellowish brown sericeous-villous, unarmed. Leaves simple; petiole 2–3.5 cm, yellowish brown sericeous-villous; stipules free, brownish, suborbicular or broadly ovate, (1–)1.5–2 cm and ca. as broad, sparsely sericeous-villous, margin laciniate, lobes lanceolate; blade suborbicular, 3–7 cm in diam., palmately 5-veined, veins brownish, lateral veins 2 or 3 pairs, prominently raised abaxially, impressed adaxially, thickly leathery, abaxially densely sericeous-villous, adaxially prominently rugulose, sparsely sericeous-villous, base cordate, margin somewhat undulate or 3–5-lobed; lobes shallowly obtusely serrate, apex obtuse, rarely acute. Inflorescences terminal or axillary, 1-flowered, rarely flowers in clusters of 2 or 3; bracts brownish, suborbicular or broadly ovate, smaller than stipules, with sparse, long silky hairs, margin laciniate; lobes lanceolate. Pedicel ca. 1 cm, yellowish brown sericeous-villous. Flowers 1.5–2 cm in diam. Calyx to 1.5 cm, abaxially yellowish brown sericeous-villous; sepals leaflike, ovate, outer sepals broader, deeply divided or deeply incised-serrate nearly above middle, inner sepals narrower, entire or sparsely serrate, apex acute. Petals broadly ovate, base shortly clawed, margin undulate, apex obtuse or emarginate. Stamens numerous, in 2 or 3 whorls, unequal in length, shorter than petals; filaments linear, slender. Pistils shorter than stamens; style and ovary glabrous. Aggregate fruit red, subglobose, glabrous, with many drupelets, enclosed in leaflike persistent calyx; pyrenes rugose. Fl. Jun–Jul, fr. Aug–Sep.
Grasslands on mountain summits, margins of dense forests, rock crevices; 1600--2000 m. Guangdong, Guangxi, Hunan, Jiangxi.

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