猪毛菜属(Salsola L.)的系统与地理分布

本文论述了猪毛菜属系统分类的简史。依据该属的系统分类新资料,对我国猪毛菜属的分组系统作了进一步整理,将国产猪毛菜属植物归为6组5亚组。文中还讨论了该属的起源发生、迁移、分化以及地理分布等问题。

SYSTEMATIC NOTES AND DISTRIBUTION OF THE GENUS SALSOLA L

The paper is a report on the revised system of the genus Salsola L. by V. Botschantzev and certain problems of the origin, differentiation and distributions of the genus Salsola.#br#The genus Salsola L. comprising 27 species in northwestern deserts of Chiaa, is grouped into 6 sections:Sect. Caroxylon (Thunb.) Fenzl, Sect. Malpigipila Botsch., Sect. Cardiandra Aellen, Sect. Arbuscula Ulbrich, Sect. Coccosalsola Fenzl an Sect. Salsola. The most ancient section, Sect, Caroxylon is assumed to originate as early as in the Oligocene Miocene on South Africa. In the Pliocene it penetrated into the region of Red Sea and the process of intense speciation occured there gave bosth the fruticose species of the sections Malpigipila, Belanthera, Arbuscula and Coccosalsola. Later in Asia, a new period of intense speciation resulted in the origin of annual species of the above mentioaed sections, as well as the sections Cardiandra and Salsola comprising only annual species.