栏目

滇北悬钩子Rubus bonatianus Focke

滇北悬钩子Rubus bonatianus Focke

别名:滇黔覆盆子;

科名:蔷薇科 Rosaceae

属名:悬钩子属 Rubus

《中国植物志》第37卷053页
  13.滇北悬钩子 图版3: 5-7
  Rubus bonatianus Focke, Bibl. Bot. 83: 43. f. 12. 1914.
  灌木或匍匐灌木;老枝无毛,深褐色或棕褐色,具稀疏皮刺;一年生花枝短,被柔毛。小叶(5)7-9枚,菱形、卵状披针形或长圆形,长2-5厘米,宽1-2.5厘米,顶端渐尖,基部宽楔形至圆形,上面伏生细柔毛,下面密被灰白色绒毛,边缘具缺刻状尖锐重锯齿;叶柄长3-8厘米,顶生小叶柄长0.5-1厘米,侧生小叶几无柄,均被柔毛和小皮刺,有时具稀疏腺毛;托叶线形,有柔毛。花常单生;花梗长1-2厘米,具柔毛或有稀疏腺毛;花直径2-3厘米;花萼外面密被细柔毛;萼片卵状披针形或三角状披针形,长达1.7厘米,顶端长尾尖,内萼片边缘有灰白色绒毛;花瓣匙形,白色,凋谢时连萼均变红色,长达1.5厘米,宽8-9毫米,稍短于萼片,两面均被细柔毛,基部有宽爪;花丝线形,基部稍宽;花柱下部和子房均密被白色长绒毛。果实未见。
  产云南北部。生山谷草地、溪旁或斜坡潮湿处,海拔3200-3500米。
  在本种原始记载中,并未记述腺毛之有无,但从云南禄劝地区标本观察,同一植株上有些叶柄与花梗上均无腺毛,而另一些则有稀疏腺毛。本文根据实物描写。
  此种和三对叶悬钩子R. trijugus Focke比较,后者花常3-4朵簇生,稀单生;花较小,直径达2厘米;叶柄和花梗上均无腺毛。而本种花常单生;花较大,直径2-3厘米;叶柄和花梗上有时具稀疏腺毛。
形态特征:灌木或匍匐灌木;老枝无毛,深褐色或棕褐色,具稀疏皮刺;一年生花枝短,被柔毛。 小叶(5)7一9枚,菱形、卵状披针形或长圆形,长2—5厘米,宽1—2.5厘米,顶端渐尖,基 部宽楔形至圆形,上面伏生细柔毛,下面密被灰白色绒毛,边缘具缺刻状尖锐重锯齿;叶柄 长3—8厘米,顶生小叶柄长0.5—1厘米,侧生小叶几无柄,均被柔毛和小皮刺,有时具稀 疏腺毛;托叶线形,有柔毛。花常单生;花梗长1—2厘米,具柔毛或有稀疏腺毛;花直径2— 3厘米;花萼外面密被细柔毛;萼片卵状披针形或三角状披针形,长达1.7厘米,顶端长尾 尖,内萼片边缘有灰白色绒毛;花瓣匙形,白色,凋谢时连萼均变红色,长达1.5厘米,宽 8一9毫米,稍短于萼片,两面均被细柔毛,基部有宽爪;花丝线形,基部稍宽;花柱下部和 子房均密被白色长绒毛。果实未见。
产地分布:产云南北部。生山谷草地、溪旁或斜坡潮湿处,海拔3200—3500米。
本种提示:在本种原始记载中,并未记述腺毛之有无,但从云南禄劝地区标本观察,同一植株上 有些叶柄与花梗上均无腺毛,而另一些则有稀疏腺毛。本文根据实物描写。, 此种和三对叶悬钩子,R。Trijugus Focke比较,后者花常3—4朵簇生,稀单生;花较 小,直径达2厘米;叶柄和花梗上均无腺毛。而本种花常单生;花较大,直径2—3厘米;叶 柄和花梗上有时具稀疏腺毛。
参考文献:Rubus bonatianus Focke,Bibl.Bot.83:43.F.12.1914.
亚组概述:Subsect.Idaeanthi(Foeke) yu et.Lu,植物分类学报20(3): 296.1982.—Sect.Pungentes Focke,Bibl.Bot。72(2):160.1911 Cr 83:40.1914 P. P.——Sect. Ldaeanthi Focke,l.C.72(2) :171.191工et 83:43.,1914·p·.p、

《Flora of China》 Vol. 9 (2003)
Rubus bonatianus  Focke
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.

TOP