林周蒲公英Taraxacum ludlowii V. Soest
林周蒲公英Taraxacum ludlowii V. Soest
66.林周蒲公英（西藏植物志）图版10：6-8
Taraxacum ludlowii V. Soest in Bull. Brit. Mus. (Nat. Hist.) Bot. 2 (10): 269. Pl. 28. 1961.
多年生草本。叶直立，羽状深裂，侧裂片达长12毫米，狭窄，多少呈镰刀状，平展或倒向，全缘，间距很长，长可达20毫米，宽约6-10毫米，全缘，无小齿，顶端裂片长35毫米，长矛状，先端尖，叶柄红至紫罗兰色，狭窄，长10厘米。花葶长于叶，高约35厘米，基部红色，光滑，略粗，上端有蛛丝状毛；头状花序直径达40毫米；总苞钟形，长15毫米，暗绿色；外层总苞片披针形，至线形，长10毫米，具不显著的窄白色边缘，部分先端有小角；内层总苞片有宽膜质边缘；舌状花深黄色，边缘花舌片背面有紫红色条纹，花柱污黄色，柱头暗绿色。瘦果未见成熟；冠毛污白色。
产西藏（拉萨、当雄、林周）。生于海拔3900-5300米山坡草地。模式标本采自西藏林周县。
形态特征：多年生草本。叶直立，羽状深裂，侧裂片达长12毫米，狭窄，多少呈镰刀状，平展或倒向，全缘，间距很长，长可达20毫米，宽约6—10毫米，全缘，无小齿，顶端裂片长35毫米，长矛状，先端尖，叶柄红至紫罗兰色，狭窄，长10厘米。花葶长于叶，高约35厘米，基部红色，光滑，略粗，上端有蛛丝状毛；头状花序直径达40毫米；总苞钟形，长15毫米，暗绿色；外层总苞片披针形，至线形，长10毫米，具不显著的窄白色边缘，部分先端有小角；内层总苞片有宽膜质边缘；舌状花深黄色，边缘花舌片背面有紫红色条纹，花柱污黄色，柱头暗绿色。瘦果未见成熟；冠毛污白色。
产地分布：产西藏(拉萨、当雄、林周)。生于海拔3900—5300米山坡草地。模式标本采自西藏林周县。
参考文献：Taraxacum ludlowii V．Soest in Bull．Brit．Mus．(Nat．Hist．)Bot．2(10)：269．P1．28．1961．
《Flora of China》 Vol. 20-21 (2011)
53. Taraxacum ludlowii Soest, Bull. Brit. Mus. (Nat. Hist.), Bot. 2: 269. 1961.
林周蒲公英 lin zhou pu gong ying
Herbs to 35 cm tall. Petiole purplish, to 10 cm, ± unwinged; leaf blade paler mid-green, narrowly oblanceolate, 15-20 × 1.6-2.5 cm, ± glabrous, pinnatilobed, midvein pale green or pinkish; lateral lobes 4-6 pairs, triangular, to 1.2 cm, usually ± patent to ± recurved, margin usually entire or rarely with a single tooth or lobule, base broad, apex attenuate and acute; interlobes 10-13 × 5-8 mm, margin entire or rarely with a single tooth or lobule; terminal lobe narrowly triangular-sagittate, elongated to 3.5 cm, margin usually entire, apex acute. Scapes brownish green but purplish at base, overtopping leaves, arachnoid below capitulum. Capitulum 3-4 cm wide. Involucre 1-1.5 cm wide, base rounded. Outer phyllaries 13-18, dark (blackish) green, ± not imbricate, linear-lanceolate, outermost ones 6-8(-10) × 1.5-2 mm and 2/3-3/4 as long as inner ones, ± appressed, with a pale almost indistinct very narrow border, margin glabrous to sparsely ciliate, with a horn below apex; inner phyllaries 1.2-1.4 cm, with a broad membranous margin, corniculate below apex. Ligules yellow; outer ligules flat, outside striped grayish pink; inner ligules with blackish purple teeth. Stigmas dirty green. Anthers polliniferous; pollen grains probably irregular in size. Achene unknown. Fl. summer. Agamosperm.● Mountain grassland slopes; ca. 4200 m. Xizang (Lhünzhub).
Taraxacum ludlowii is known only from the type specimen. Reports of collections from other counties in Xizang (FRPS 80(2): 71. 1999) are incorrect.
科名：菊科 Compositae
属名：蒲公英属 Taraxacum
66.林周蒲公英（西藏植物志）图版10：6-8
Taraxacum ludlowii V. Soest in Bull. Brit. Mus. (Nat. Hist.) Bot. 2 (10): 269. Pl. 28. 1961.
多年生草本。叶直立，羽状深裂，侧裂片达长12毫米，狭窄，多少呈镰刀状，平展或倒向，全缘，间距很长，长可达20毫米，宽约6-10毫米，全缘，无小齿，顶端裂片长35毫米，长矛状，先端尖，叶柄红至紫罗兰色，狭窄，长10厘米。花葶长于叶，高约35厘米，基部红色，光滑，略粗，上端有蛛丝状毛；头状花序直径达40毫米；总苞钟形，长15毫米，暗绿色；外层总苞片披针形，至线形，长10毫米，具不显著的窄白色边缘，部分先端有小角；内层总苞片有宽膜质边缘；舌状花深黄色，边缘花舌片背面有紫红色条纹，花柱污黄色，柱头暗绿色。瘦果未见成熟；冠毛污白色。
产西藏（拉萨、当雄、林周）。生于海拔3900-5300米山坡草地。模式标本采自西藏林周县。
形态特征：多年生草本。叶直立，羽状深裂，侧裂片达长12毫米，狭窄，多少呈镰刀状，平展或倒向，全缘，间距很长，长可达20毫米，宽约6—10毫米，全缘，无小齿，顶端裂片长35毫米，长矛状，先端尖，叶柄红至紫罗兰色，狭窄，长10厘米。花葶长于叶，高约35厘米，基部红色，光滑，略粗，上端有蛛丝状毛；头状花序直径达40毫米；总苞钟形，长15毫米，暗绿色；外层总苞片披针形，至线形，长10毫米，具不显著的窄白色边缘，部分先端有小角；内层总苞片有宽膜质边缘；舌状花深黄色，边缘花舌片背面有紫红色条纹，花柱污黄色，柱头暗绿色。瘦果未见成熟；冠毛污白色。
产地分布：产西藏(拉萨、当雄、林周)。生于海拔3900—5300米山坡草地。模式标本采自西藏林周县。
参考文献：Taraxacum ludlowii V．Soest in Bull．Brit．Mus．(Nat．Hist．)Bot．2(10)：269．P1．28．1961．
《Flora of China》 Vol. 20-21 (2011)
53. Taraxacum ludlowii Soest, Bull. Brit. Mus. (Nat. Hist.), Bot. 2: 269. 1961.
林周蒲公英 lin zhou pu gong ying
Herbs to 35 cm tall. Petiole purplish, to 10 cm, ± unwinged; leaf blade paler mid-green, narrowly oblanceolate, 15-20 × 1.6-2.5 cm, ± glabrous, pinnatilobed, midvein pale green or pinkish; lateral lobes 4-6 pairs, triangular, to 1.2 cm, usually ± patent to ± recurved, margin usually entire or rarely with a single tooth or lobule, base broad, apex attenuate and acute; interlobes 10-13 × 5-8 mm, margin entire or rarely with a single tooth or lobule; terminal lobe narrowly triangular-sagittate, elongated to 3.5 cm, margin usually entire, apex acute. Scapes brownish green but purplish at base, overtopping leaves, arachnoid below capitulum. Capitulum 3-4 cm wide. Involucre 1-1.5 cm wide, base rounded. Outer phyllaries 13-18, dark (blackish) green, ± not imbricate, linear-lanceolate, outermost ones 6-8(-10) × 1.5-2 mm and 2/3-3/4 as long as inner ones, ± appressed, with a pale almost indistinct very narrow border, margin glabrous to sparsely ciliate, with a horn below apex; inner phyllaries 1.2-1.4 cm, with a broad membranous margin, corniculate below apex. Ligules yellow; outer ligules flat, outside striped grayish pink; inner ligules with blackish purple teeth. Stigmas dirty green. Anthers polliniferous; pollen grains probably irregular in size. Achene unknown. Fl. summer. Agamosperm.● Mountain grassland slopes; ca. 4200 m. Xizang (Lhünzhub).
Taraxacum ludlowii is known only from the type specimen. Reports of collections from other counties in Xizang (FRPS 80(2): 71. 1999) are incorrect.