疏花长柄山蚂蝗复合体(豆科)的修订

Revision of the Hylodesmum laxum Complex (Leguminosae)

摘要:

通过文献、标本研究,结合野外考察及数据统计分析,确认疏花长柄山蚂蝗复合体包括4 种1 亚种,讨论了各分类群的重要性状,并给出了新的检索表。将湘西长柄山蚂蝗(Hylodesmum laxum subsp. falfolium)处理为原亚种的新异名;订正了《中国植物志》和《Flora of China》等著作中该类群的几个错误的地理分布,记载了我国几个省区的分布新记录,并给出了凭证标本。

Abstract:

A revision of the Hylodesmum laxum complex is made on the basis of an analysis of morphological variations. Four species, viz., H. leptopus, H. laterale, H. densum, H. laxum, and one subspecies, H. laxum subsp. lateraxum, are recognized. Their diagnostic characters are discussed, and a key to them is provided. Hylodesmum laxum subsp. falfolium (H. Ohashi) H. Ohashi & R. R. Mill is reduced to synonymy of H. laxum subsp. laxum.