On the Higher Taxa of Embryobionta Author(s): Arthur Cronquist, Armen Takhtajan and Walter Zimmermann Source: Taxon, Vol. 15, No. 4 (Apr., 1966), pp. 129-134 Published by: International Association for Plant Taxonomy (IAPT) Stable URL: http://www.jstor.org/stable/1217531 . Accessed: 05/04/2014 08:26 Your use of the JSTOR archive indicates your acceptance of the Terms & Conditions of Use, available at . http://www.jstor.org/page/info/about/policies/terms.jsp . JSTOR is a not-for-profit service that helps scholars, researchers, and students discover, use, and build upon a wide range of content in a trusted digital archive. We use information technology and tools to increase productivity and facilitate new forms of scholarship. For more information about JSTOR, please contact
[email protected]. International Association for Plant Taxonomy (IAPT) is collaborating with JSTOR to digitize, preserve and extend access to Taxon. http://www.jstor.org This content downloaded from 212.238.120.34 on Sat, 5 Apr 2014 08:26:21 AM All use subject to JSTOR Terms and Conditions APRIL 1966 VOL. XV No. 4 f TAXON"""" News Bulletin of the International Association for Plant Taxonomy. - Published by the InternationalBureau for Plant Taxonomy and Nomenclature, 106 Lange Nieuwstraat, Utrecht, Netherlands ON TIHE HIGHER TAXA OF EMBRYOBIONTA Arthur Cronquist (New York), Armen Takhtajan (Leningrad) and Walter Zimmermann (Tiibingen) The general system of plants and the nomenclature of higher taxa at the level of divisions and classes are now unstable and in a state of confusion. The well known schemes of classification by which all plants are grouped into only 4 or 5 divisions have been largely abandoned because they do not adequately reflect the great diversity within the plant kingdom.