Bessey system

A system of plant taxonomy, the Bessey system was published in

Charles E. Bessey (1915). "The phylogenetic taxonomy of flowering plants". Annals of the Missouri Botanical Garden (Missouri Botanical Garden Press) 2 (1/2): 109–164. doi:10.2307/2990030. JSTOR 2990030.  available online at "Botanicus.org" (PDF). Missouri Botanical Garden. http://www.botanicus.org/item/31753999990002. Retrieved 2007-08-16. 

Bessey considered Spermatophyta as having a polyphyletic origin, being composed by three different phyla, of which he only treated Anthophyta (syn.: Angiosperms).

With some modifications, most modern classifications - for example, those of Cronquist (1981, 1983, 1988), Takhtajan (1969, 1980, 1983, 1991), Stebbins (1974), R. Dahlgren (1975, 1980, 1983; R. Dahlgren et al. 1981; R. Dahlgren and Rasmussen 1983; R. Dahlgren and Bremer 1985; G. Dahlgren 1989), and Thorne (1976, 1981, 1983, 1992) - follow the Bessey tradition. [1]

Sources for classification below: G. H. M. Lawrence (1951). Taxonomy of vascular plants.  and original (1915).

References