Browsing by Author "Marais, Elizabeth Maria"
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- ItemDie taksonomiese waarde van die blom van Pelargonium (Geraniaceae)(Stellenbosch : Stellenbosch University, 1981) Marais, Elizabeth Maria; Stellenbosch University. Faculty of Science. Departmnet of Botany and Zoology.ENGLISH ABSTRACT: The morphology of the flower of Pelargonium was studied to determine the characteristics of taxonomic importance. The first aim was to find characteristics which could be used to distinguish between taxa. A second was to ascertain whether the genus could be subdivided into smaller taxonomic units on floral characteristics. Live flowers of a representative number of taxa of each section were studied. This was supplemented by a study of herbarium specimens of each taxon. Diagnostic features were drawn up for each taxon and these were used in a key to identify taxa of the different sections. The study has proved that several flower characteristics are of taxonomic importance. Characteristics that reveal relationships separate some of the sections as natural taxa and can also be used to divide some sections into smaller units. Furthermore it has become evident that some species were previously placed in wrong sections. Theories about the relationships and phylogeny of the various sections are presented.