阴地唐松草Thalictrum umbricola Ulbr.
阴地唐松草Thalictrum umbricola Ulbr.
31. 阴地唐松草 图版143: 7-9（见568页）
Thalictrum umbricola Ulbr. in Notizbl. Bot. Gart. Berl. 9: 221. 1925. ——T. gueguenii Boivin in Rhodora 46: 366, f. 17. 1944.
植株全部无毛。茎高15-50厘米，纤细，分枝。基生叶长达30厘米，为二回或三回三出复叶；小叶薄草质，近圆形，圆菱形或宽倒卵形，长和宽为1-2.5厘米，基部圆形、浅心形或钝，三浅裂，裂片有1-2圆齿，脉平或在背面稍隆起，脉网不明显或稍 明显；叶柄长达12厘米。茎生叶小，为一回或二回三出复叶。花序有少数花，伞房状；花梗细，长1-2.4厘米；萼片4，白色，早落，卵形，长2毫米；雄蕊多数，长4-5毫米，花药黄色，椭圆形或长圆形，长0.5-0.8毫米，花丝上部狭倒披针形，比花药宽，下部丝形；心皮6-9，有柄，柱头盘状，无柄。瘦果纺锤形，扁，不包括柄长约3毫米，宽0.6-0.8毫米，有8条细纵肋，心皮柄长1-2毫米。3-4月开花。
分布于广西东部、广东（罗浮山）、湖南东南部、江西南部。生海拔1000-1300米间山地林中、沟边或陡崖较阴湿处。模式标本采自江西上犹。
《Flora of China》 Vol. 6 (2001)
Thalictrum umbricola Ulbrich
阴地唐松草 yin di tang song cao
Thalictrum gueguenii B. Boivin
Plants 15--50 cm tall, glabrous. Stems branched, slender, sometimes smooth. Basal leaf 1; petiole ca. 12 cm; leaf blade 2- or 3-ternate, ca. 30 cm; leaflet blade broadly obovate, orbicular-rhombic, or orbicular, 1--2.5 × 1--2.5 cm, thinly herbaceous, base rounded to subcordate, margin 3-lobed; lobes 1- or 2-crenate; veins flat or raised abaxially. Cauline leaves small; leaf blade 1- or 2-ternate. Inflorescence flat topped, few flowered. Pedicel slender, 10--25 mm. Sepals 4, early deciduous, white, ovate, ca. 2 mm. Stamens many; filament base filiform, apex narrowly oblanceolate, broader than anther; anther yellow, elliptic or oblong, 0.5--0.8 mm. Carpels 6--9; stigma discoid. Achene stipe 1--2 mm; body fusiform, compressed, ca. 3 × 0.6--0.8 mm; veins ca. 8, weak. Fl. Mar--Apr.
* Montane forests, valley sides, damp rocky ledges; 1000--1300 m. Guangdong, Guangxi, SE Hunan, S Jiangxi.
别名：唐松草;小阴地唐松草;
科名：毛茛科 Ranunculaceae
属名：唐松草属 Thalictrum
31. 阴地唐松草 图版143: 7-9（见568页）
Thalictrum umbricola Ulbr. in Notizbl. Bot. Gart. Berl. 9: 221. 1925. ——T. gueguenii Boivin in Rhodora 46: 366, f. 17. 1944.
植株全部无毛。茎高15-50厘米，纤细，分枝。基生叶长达30厘米，为二回或三回三出复叶；小叶薄草质，近圆形，圆菱形或宽倒卵形，长和宽为1-2.5厘米，基部圆形、浅心形或钝，三浅裂，裂片有1-2圆齿，脉平或在背面稍隆起，脉网不明显或稍 明显；叶柄长达12厘米。茎生叶小，为一回或二回三出复叶。花序有少数花，伞房状；花梗细，长1-2.4厘米；萼片4，白色，早落，卵形，长2毫米；雄蕊多数，长4-5毫米，花药黄色，椭圆形或长圆形，长0.5-0.8毫米，花丝上部狭倒披针形，比花药宽，下部丝形；心皮6-9，有柄，柱头盘状，无柄。瘦果纺锤形，扁，不包括柄长约3毫米，宽0.6-0.8毫米，有8条细纵肋，心皮柄长1-2毫米。3-4月开花。
分布于广西东部、广东（罗浮山）、湖南东南部、江西南部。生海拔1000-1300米间山地林中、沟边或陡崖较阴湿处。模式标本采自江西上犹。
《Flora of China》 Vol. 6 (2001)
Thalictrum umbricola Ulbrich
阴地唐松草 yin di tang song cao
Thalictrum gueguenii B. Boivin
Plants 15--50 cm tall, glabrous. Stems branched, slender, sometimes smooth. Basal leaf 1; petiole ca. 12 cm; leaf blade 2- or 3-ternate, ca. 30 cm; leaflet blade broadly obovate, orbicular-rhombic, or orbicular, 1--2.5 × 1--2.5 cm, thinly herbaceous, base rounded to subcordate, margin 3-lobed; lobes 1- or 2-crenate; veins flat or raised abaxially. Cauline leaves small; leaf blade 1- or 2-ternate. Inflorescence flat topped, few flowered. Pedicel slender, 10--25 mm. Sepals 4, early deciduous, white, ovate, ca. 2 mm. Stamens many; filament base filiform, apex narrowly oblanceolate, broader than anther; anther yellow, elliptic or oblong, 0.5--0.8 mm. Carpels 6--9; stigma discoid. Achene stipe 1--2 mm; body fusiform, compressed, ca. 3 × 0.6--0.8 mm; veins ca. 8, weak. Fl. Mar--Apr.
* Montane forests, valley sides, damp rocky ledges; 1000--1300 m. Guangdong, Guangxi, SE Hunan, S Jiangxi.