中国蒲公英属(菊科)一新变种--江苏红果蒲公英.docVIP

 中国蒲公英属(菊科)一新变种——江苏红果 蒲公英# 罗庆云* 5 10 15 20 25 30 35 40 （南京农业大学园艺学院中药材研究所，南京 210095） 摘要：首次报道了中国东部江苏省境内分布的蒲公英属新变种——江苏红果蒲公英 ( Taraxacum erythrospermum Andrz var. Kiangsuense Q. Y. Luo et K.C. Wang), 并摄 制了照片。该物种植株形态及瘦果的形状、颜色和大小等与分布于中国新疆等西部地区的红 果蒲公英( Taraxacum erythrospermum Andrz)相近似。但其瘦果逐渐收缩成长 0.8-1 毫米 的圆锥状喙基，喙长 8-10 毫米、外层总苞片幼蕾期就开展至反卷、内层总苞片长为外层总 苞片的 1.5-2 倍而与红果蒲公英有明显区别，为菊科一新变种。 关键词：蒲公英属；江苏红果蒲公英；菊科；新变种；江苏；中国 中图分类号：Q949.71 Taraxacum erythrospermum Andrz var. Kiangsuense （Compositae）, A New Variety from Jiangsu,China LUO Qingyun (Institute of Chinese Medicinal materials, College of Horticulture, Nanjing Agricultural University, NanJing 210095) Abstract: Abstract: Taraxacum erythrospermum Andrz var. Kiangsuense Q.Y.Luo et K.C.Wang, a new variety of Compositae distributed in the East China of Jiangsu province, was first reported in this paper. T. erythrospermum Andrz var. Kiangsuense Q.Y.Luo et K.C.Wang is morphologically close to T. erythrospermum Andrz, the sole variety of Section Erythrosperma (H. Lindb. f.) Dahlst recorded in China Flora, which distributed in the west China of Xinjiang Uygur Autonomous Region. Since the achene of T. erythrospermum Andrz var. Kiangsuense Q.Y.Luo et K.C.Wang is characterized by grew gradually to become a length of 0.8-1 mm conic base for beak of 8-10 mm, and its outer bracts are roll back since the floral bud is very young, lengthes of the inner bracts is 1.5-2.0 times of those of the outer ones. All of these characteristics showed that T. erythrospermum Andrz var. Kiangsuense Q.Y.Luo et K.C.Wang is different from T. erythrospermum Andrz, and is a new variety of Compositae. Pictures of the new variety are also included. Keywords: Taraxacum; Taraxacum erythrospermum Andrz var. Kiangsuense Q . Y. Luo et K.C . Wang; Compositae; new variety; Jiangsu; China 2012 年 4 月，在野外药材采集调查中，发现一种花期较蒲公英早、种子颜色及大小与 蒲公英明显差异的蒲公英属植物，在南京等地发现其多与蒲公英杂居、分布生境相同。为了 深入了解该种植物的分类，查阅植物志和文献资料。《中国植物志》记载，蒲公英属在江苏 [1] 花、果实的形态特征详细观察，作者认为，本种隶属于红果蒲公英组[Sect. Erythrosperma (H.