【摘要】 <正> 本文研究了国产和引进的大麦属及其近缘属植物。从习性、穗轴、三联小穗柄、三联小穗的可育性、小穗含花数、颖、外稃、芒和颖果与稃体的离合等各方面比较了大麦亚族Subtrib.Hordeinae 各级分类群的形态;综合论述了其演化方向;并据此阐明大麦属与近缘各属的亲缘关系;最后还据此作出了大麦属下的分类系统表和分种检索表。更多还原

【Abstract】 In this paper,the native and introduced species of Hordeum and their related genera were studied.Based on the comparison about the morphological Characteristics of raehis,trispikelet pedicel,its fertili- ty,florets per spikelet,glume and lemma as well as that of caryopsis; the evolutionary tendency in subtribe Hordeinae and the relationships of Hordeum L.with other genera were studied;the systematic list and the key to species of Hordeum were made. The genera Closely related to Hordeum are Psathrostachyz,Hordelymus Leymus,Hystrix and Taeniatherum. The genus Hordeum is derided into 3 subgenera and 5 sections are included.I.subgen.stenostachya,consisting of sect.stenostachys and sect. Critesion;I.subgen.Hordeastrum,consisting of sect.Bulbohordeum and sect.Trichostachys’;I.subgen.Hordeum,including sect Hordeum.更多还原