The comparison of the molecular analysis with morphological and anatomical data presented here represents an important basis for a new formal classification for the Araceae and for the understanding of the evolution of this ancient family, a monocot group known in the fossil record from the early Cretaceous.

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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 support@jstor.org. . International Association for Plant Taxonomy (IAPT) is collaborating with JSTOR to digitize, preserve and extend access to Taxon. Summary Hetterscheid , W. L. A. & Brandenburg, W. A.: Culton versus taxon: conceptual issues in cultivated plant systematics. -Taxon 44: 161-175. 1995. -ISSN 0040-0262. The systematics of cultivated plants need to be divorced from a number of confusing ties with the systematics of plants found in nature. These ties have been developed in time because systematic groups of cultivated plants have often been looked upon as proper taxa and treated accordingly in classifications and nomenclature. It is shown that cultivated plants and their special purpose taxonomy are part of a different context (human society) than the context of taxonomy of plants in nature (evolution). A general concept of systematic groups of cultivated plants, termed "culton", is here proposed to end this confusion. The most important ranks of culta, viz. the cultivar and the cultivar group, are discussed and their definitions purified from imprecise elements. It is shown that the culton/taxon confusion has led to systematic/taxonomic misnomers and a far too complicated nomenclature for cultivated plants.