太白山毛茛Ranunculus petrogeiton
中文名(Chinese Name):太白山毛茛
学名(Scientific Name):Ranunculus petrogeiton Ulbr.
英文名(English Common Name):
别名(Chinese Common Name):
异名(Synonym):
科属(Family & Genus):毛茛科(Ranunculaceae)毛茛属
形态特征(Description):多年生草本。须根细长。茎倾斜上升,高10-25厘米,有时下部节间伸长,匍匐或于节上生根,有分枝,无毛或疏生柔毛。基生叶与下部叶有长柄;叶片宽卵形至五角状圆形,长及宽为1-3厘米,基部心形或截形,3深裂,中裂片倒卵状楔形,有3齿或全缘,顶端稍尖,侧裂片2深裂,裂片再2裂或有齿,无毛或疏生柔毛;叶柄长3-6厘米,无毛。中部叶3深裂,裂片卵状披针形,长约1.5厘米,宽3-5毫米,基部有膜质宽鞘抱茎,常生柔毛;上部叶不分裂成苞片状。花单生,直径约1.5厘米;花梗长1-3厘米至果期伸长达7厘米,生曲柔毛;萼片卵形,长3-6毫米,有3-5脉,外面生柔毛,边缘宽膜质;花瓣宽倒卵形,长5-7毫米,宽约4毫米;基部有长约0.5毫米的爪,蜜槽呈杯状袋穴; 花药长1-1.4毫米;花托棒状,长3-4毫米,为宽的2倍,无毛。聚合果卵球形,直径4-5毫米;瘦果卵球形,稍扁,长1.5-2毫米,宽1-1.2毫米,无毛,喙直伸或弯,长0.5-1毫米。花果期6月至7月。
分布(Distribution):产陕西秦岭太白山,生长于海拔3000-3700米的山顶湿润草地。
引自中国植物志英文版:FOC Vol. 6 Page 403
Ranunculus petrogeiton Ulbrich, Repert. Spec. Nov. Regni Veg. Beih. 12: 376. 1922.
太白山毛茛 tai bai shan mao gen| Ranunculaceae | Ranunculus
Herbs perennial. Roots fibrous, subequally thick. Stems ascending, 5--12(--20) cm, sparsely puberulent, branched or simple. Basal leaves 3 or more; petiole 0.7--5.5 cm, glabrous or sparsely puberulent; blade 3-sect or 3-partite, pentagonal or broadly ovate, 0.5--2 × 0.7--2.2 cm, thinly leathery or papery, glabrous or abaxially sparsely puberulent, base cordate, central segment cuneate or rhombic, 3-lobed, 3-dentate, or entire; lateral segments obliquely flabellate, unequally 2-lobed. Lower stem leaves similar to basal ones, short petiolate, upper ones subsessile, 3-sect, segments oblong. Flowers solitary, terminal, 0.9--2 cm. Receptacle glabrous. Sepals 5, elliptic, 4--6.5 mm, abaxially sparsely puberulent. Petals 5(or 6), obovate or oblong-obovate, rarely broadly obovate, 4.5--9 × 2--9 mm, nectary pit without a scale, apex rounded, rarely subtruncate. Stamens numerous; anthers oblong. Aggregate fruit ovoid, 5--7 × 4--6 mm; carpels numerous. Achene slightly bilaterally compressed, broadly obovoid, 1.2--1.5 × ca. 1.2 mm, glabrous; style persistent, 0.5--1 mm. Fl. Jul--Aug, fr. Jul--Sep.
(责任编辑:徐晔春)
学名(Scientific Name):Ranunculus petrogeiton Ulbr.
英文名(English Common Name):
别名(Chinese Common Name):
异名(Synonym):
科属(Family & Genus):毛茛科(Ranunculaceae)毛茛属
形态特征(Description):多年生草本。须根细长。茎倾斜上升,高10-25厘米,有时下部节间伸长,匍匐或于节上生根,有分枝,无毛或疏生柔毛。基生叶与下部叶有长柄;叶片宽卵形至五角状圆形,长及宽为1-3厘米,基部心形或截形,3深裂,中裂片倒卵状楔形,有3齿或全缘,顶端稍尖,侧裂片2深裂,裂片再2裂或有齿,无毛或疏生柔毛;叶柄长3-6厘米,无毛。中部叶3深裂,裂片卵状披针形,长约1.5厘米,宽3-5毫米,基部有膜质宽鞘抱茎,常生柔毛;上部叶不分裂成苞片状。花单生,直径约1.5厘米;花梗长1-3厘米至果期伸长达7厘米,生曲柔毛;萼片卵形,长3-6毫米,有3-5脉,外面生柔毛,边缘宽膜质;花瓣宽倒卵形,长5-7毫米,宽约4毫米;基部有长约0.5毫米的爪,蜜槽呈杯状袋穴; 花药长1-1.4毫米;花托棒状,长3-4毫米,为宽的2倍,无毛。聚合果卵球形,直径4-5毫米;瘦果卵球形,稍扁,长1.5-2毫米,宽1-1.2毫米,无毛,喙直伸或弯,长0.5-1毫米。花果期6月至7月。
分布(Distribution):产陕西秦岭太白山,生长于海拔3000-3700米的山顶湿润草地。
引自中国植物志英文版:FOC Vol. 6 Page 403
Ranunculus petrogeiton Ulbrich, Repert. Spec. Nov. Regni Veg. Beih. 12: 376. 1922.
太白山毛茛 tai bai shan mao gen| Ranunculaceae | Ranunculus
Herbs perennial. Roots fibrous, subequally thick. Stems ascending, 5--12(--20) cm, sparsely puberulent, branched or simple. Basal leaves 3 or more; petiole 0.7--5.5 cm, glabrous or sparsely puberulent; blade 3-sect or 3-partite, pentagonal or broadly ovate, 0.5--2 × 0.7--2.2 cm, thinly leathery or papery, glabrous or abaxially sparsely puberulent, base cordate, central segment cuneate or rhombic, 3-lobed, 3-dentate, or entire; lateral segments obliquely flabellate, unequally 2-lobed. Lower stem leaves similar to basal ones, short petiolate, upper ones subsessile, 3-sect, segments oblong. Flowers solitary, terminal, 0.9--2 cm. Receptacle glabrous. Sepals 5, elliptic, 4--6.5 mm, abaxially sparsely puberulent. Petals 5(or 6), obovate or oblong-obovate, rarely broadly obovate, 4.5--9 × 2--9 mm, nectary pit without a scale, apex rounded, rarely subtruncate. Stamens numerous; anthers oblong. Aggregate fruit ovoid, 5--7 × 4--6 mm; carpels numerous. Achene slightly bilaterally compressed, broadly obovoid, 1.2--1.5 × ca. 1.2 mm, glabrous; style persistent, 0.5--1 mm. Fl. Jul--Aug, fr. Jul--Sep.
- Forests, gravelly slopes; 3000--4800 m. C Gansu, S Shaanxi (Taibai Shan), W Sichuan (Kangding Xian, Sungpan Xian).
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