Abstract

This paper reports the results of a taximetric study of the genus Loudetia Hochst. ex Steud. (Arundinelleae, Gramineae) based on leaf anatomical data. Two interrelated questions were posed: firstly, whether leaf anatomical data would be found to generate taxonomic results conformable to those from morphological data; and secondly, what light might be thrown on the affinities of certain taxa of more obscure or controversial relationships, viz. Loudetia jaegeriana, L. togoensis, Loudetia sect. Pleioneura, and Rattraya. It was discovered that a generalized affinity to the preexisting morphological taxonomies existed, and that L. jaegeriana, L. togoensis, and Loudetia sect. Pleioneura (with Rattraya) tended to be not only distant from each other but not closely related to the main section of Loudetia.

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