栏目

小花蒲公英Taraxacum parvulum (Wall.) DC.

小花蒲公英Taraxacum parvulum (Wall.) DC.

别名:裂叶蒲公英;

科名:菊科 Compositae

属名:蒲公英属 Taraxacum

《中国植物志》第80(2)卷023页
  17.小花蒲公英(新拟)图版3:1-5
  Taraxacum parvulum (Wall.) DC. Prodr. 7 (1): 148. 1838; Kirschn. in Edinb. J. Bot. 53 (2): 219. 1996. -Leontodon parvulum Wall., Numer. List. [‘Catal. ’], p. 112, no. 3247/357 (1831) , [’Kamaon RB’] nom. inval. ——Taraxacum dissectum auct. non Ledeb. : Hand. -Mazz. Monogr. Tarax. 48. 1907. p. p. ; Ling in Contr. Inst. Bot. Nat. Acad. Peip. 3: 204. 1935; S. Y. Hu in Quart. Journ. Taiwan Mus. 22: 652. 1969. p. p. ——T. himalaicum V. Soest in Bull. Brit. Mus. (Nat. Fist.) Bot. 2 (10): 267. 1961. et in Wentia 10: 38. 1963; Kitam. et Gould. in Enum. Fl. Pl. Nepal 3: 46. 1982. ——T. bhutanicum V. Soest l. c. 2 (10): 263. 1961. ——T. staticifolium V. Soest l. c. 2 (10): 272. 1961. ——T. kawaguchii Kitam. in Act. Phytotax. Geobot. 15: 77. f. 13. 1953. ——T. bicolor auct. non DC.: 西藏植物志4: 937. 1985. ——T. wutaishanense Kitag. in Act. Phytotax. Geobot. 40 (5-6): 145. 1989.
  多年生矮小草本。叶倒披针形,长5-10厘米,宽8-15毫米,全缘或大头羽状半裂至深裂,每侧裂片4-5片;侧裂片近三角形至长三角形,相互连接或有间距,平展。花葶较短,高3-10厘米,顶端密生蛛丝状毛;头状花序直径约20-30毫米;总苞小,长10-13毫米;外层总苞片通常8-10个,略呈覆瓦状排列,淡绿色,长4-6毫米,宽1.8-3毫米,卵状披针形,具明显的宽膜质边缘,先端增厚或光滑,中间常为黑色条带;内层总苞片线形,有膜质边缘,先端紫色;舌状花黄色,边缘花舌片背面有紫色条纹,花柱和柱头黄色。瘦果淡橘黄至棕色,长3-4毫米,上部具稀疏的小刺,顶端逐渐收缩为圆锥形喙基,喙基长约1毫米,喙长4-6毫米;冠毛白色,长4-7毫米。
  产山西(五台山)、青海、四川西部、云南西北部及西藏。生于海拔1 500-4 500米沼泽地、河滩草甸以及山坡草地。不丹、印度西北部及巴基斯坦北部也有分布。
  本种个体很小,性状比较混杂。它除了花的颜色外,其他性状易与白花蒲公英T.leucanthum Ledeb.混淆。前面列为异名的7个种,由于它们总苞片先端均无小角,外层总苞片披针形,具明显的宽膜质边缘等特征相同,故予以归并。
形态特征:多年生矮小草本。叶倒披针形,长5—10厘米,宽8—15毫米,全缘或大头羽状半裂至深裂,每侧裂片4—5片;侧裂片近三角形至长三角形,相互连接或有间距,平展。花葶较短,高3—10厘米,顶端密生蛛丝状毛;头状花序直径约20—30毫米;总苞小,长10—13毫米;外层总苞片通常8—10个,略呈覆瓦状排列,淡绿色,长4—6毫米,宽1.8—3毫米,卵状披针形,具明显的宽膜质边缘,先端增厚或光滑,中间常为黑色条带;内层总苞片线形,有膜质边缘,先端紫色;舌状花黄色,边缘花舌片背面有紫色条纹,花柱和柱头黄色。瘦果淡橘黄至棕色,长3—4毫米,上部具稀疏的小刺,顶端逐渐收缩为圆锥形喙基,喙基长约1毫米,喙长4—6毫米;冠毛白色,长4—7毫米。
产地分布:产山西(五台山)、青海、四川西部、云南西北部及西藏。生于海拔1500—4500米沼泽地、河滩草甸以及山坡草地。不丹、印度西北部及巴基斯坦北部也有分布。
本种提示:本种个体很小,性状比较混杂。它除了花的颜色外,其他性状易与白花蒲公英T.1eucanthumLedeb.混淆。前面列为异名的7个种,由于它们总苞片先端均无小角,外层总苞片披针形,具明显的宽膜质边缘等特征相同,故予以归并。
参考文献:Taraxacum parvulum (Wall.)DC.Prodr.7(1):148.1838;Kirschn.In Edinb.J. Bot.53(2):219.1996.——Leontodon parvulum Wall·,Numer.List.[‘Catal.’], p.112,no.3247/357(1831), [’KamaonRB’]nom.inval.——Taraxacumdis— Sectum auct.nonLedeb.:Hand.—Mazz.Monogr.Tarax.48.1907.P.P.;LinginContr. Inst.Bot.Nat.Acad.Peip.3:204.1935;S.Y.HuinQuart.Journ.TaiwanMus.22: 652.1969.P.P.——T.Himalaicurn V.SoestinBull.Brit.Mus. (Nat.Hist.)Bot. 2(10):267.1961.Et in Wentia 10:38.1963;Kitam.Et Gould.In Enum.F1.P1. Nepal3:46.1982.——T.Bhutanicum V.Soest 1.C.2(10):263.1961.——T. Staticifolium V.Soest 1.C.2(10):272.1961.——T.Kawaguchii Kitam.In Act. Phytotax.CeobOt.15:77.F,13.1953.——T.Bicolorauct.nonDC.:西藏植物志4: 937.1985.——T.V.Rutaishanense Kitag.In Act.Phytotax.Geobot.40(5——6): 145.1989.

《Flora of China》 Vol. 20-21 (2011)
104. Taraxacum parvulum Candolle, Prodr. 7: 149. 1838.
小花蒲公英 xiao hua pu gong ying Taraxacum himalaicum Soest.
Herbs 5-10 cm tall, small. Petiole pale green to pinkish, arachnoid at base, narrow to narrowly ± winged; leaf blade pale grayish green, oblanceolate to broadly oblanceolate, 4-9 × 1.2-2 cm, almost glabrous, pinnatilobed; lateral lobes in 1-3 pairs, triangular to deltoid, recurved, margin ± entire; interlobes long, margin ± entire; terminal lobe triangular-sagittate, margin entire, apex ± acute. Scapes brownish green, ± equaling leaves, arachnoid. Capitulum 1.5-2.5 cm wide. Involucre 6-8 mm wide, base broadly subconic to ± rounded. Outer phyllaries 8-10, pale grayish green, ± imbricate, ± lanceolate or narrowly so, outermost ones (4-)4.5-5.5 × (1.5-)1.8-2.3 mm and 1/3-1/2 as long as inner ones, appressed, narrow middle part blackish green, border getting paler from pale greenish near middle to whitish green near margin and 0.2-0.3 mm wide, margin subglabrous, apex bordered pinkish and ± flat; inner phyllaries 1-1.2 cm, apex ± flat. Ligules yellow; outer ligules outside faintly striped grayish pink. Stigmas yellow to pale grayish yellow. Anthers polliniferous; pollen grains ± regular in size. Achene pale brownish orange, 3.8-4.6 × 0.8-0.9 mm; body ± smooth below, subsparsely spinulose above, apically gradually narrowing into a subcylindric (0.8-)1-1.2(-1.4) mm cone, spinules short and thin; beak ca. 6 mm. Pappus white, 6-7 mm. Fl. late spring to summer. Predominantly sexual.Grassland slopes, pastures, river terraces; 2000-4500 m. Sichuan, Xinjiang, Xizang, Yunnan [Bhutan, India, Myanmar, Nepal].
The report of Taraxacum parvulum from Xinjiang is based on the report by Soest (Wentia 10: 38. 1963). The reports from NE Qinghai and N Shanxi (FRPS 80(2): 26. 1999; Higher Pl. China 11: 772. 2005) are incorrect.

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