Studies in the Dryopteris inaequalis (Dryopteridaceae) complex

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dc.contributor.advisorRoux, JPen_ZA
dc.contributor.advisorLinder, HPen_ZA
dc.contributor.authorKwembeya, Ezekeil Gwinyaien_ZA
dc.date.accessioned2014-08-13T14:04:33Z
dc.date.available2014-08-13T14:04:33Z
dc.date.issued2000en_ZA
dc.descriptionBibliography: leaves 58-64.en_ZA
dc.description.abstractThe taxonomy of Dryopteris inaequalis complex is reviewed. The use of a large sample size permitted quantification of variation within and among groups. Phenetic methods in this study revealed the existence of six groups, five formerly described taxa and one new taxon, D. pseudopentheri sp. ined. The new species is defined on both macromorphological grounds. Dryopteris lewelleana Pic.Serm. and d. inaequalis (Schltdl.) Kuntze var. atropaleacae Schelpe are placed in synonymy under D.fadenii Pic.Serm. and D.inaequalis respectively. The phylogeny of the complex is reconstructed using cladistic analysis of morphological characters. Dryopteris manniana (Hook.) C.Chr., the probabl sister species is used as an outgroup for the analysis. Phylogenetic analysis revealed that there are four monphyletic species and two metataxa in the complex. Evidence from Scanning Electron Microscopy, micromorphology, macromorphology and cytology is used as a basis for classification. Trichome characters, indusium, spore and guard-cell sizes proved to be of great taxonomic utility in defining species and cytotypes in the complex. Guard-cell and spore sizes in the different taxa are positively correlated to ploidal level. Illustrations of some microcharacters are provided. The taxonomic treatment includes a key, descriptions of the species based on the characters studied and a distribution map.en_ZA
dc.identifier.apacitationKwembeya, E. G. (2000). <i>Studies in the Dryopteris inaequalis (Dryopteridaceae) complex</i>. (Thesis). University of Cape Town ,Faculty of Science ,Department of Biological Sciences. Retrieved from http://hdl.handle.net/11427/6116en_ZA
dc.identifier.chicagocitationKwembeya, Ezekeil Gwinyai. <i>"Studies in the Dryopteris inaequalis (Dryopteridaceae) complex."</i> Thesis., University of Cape Town ,Faculty of Science ,Department of Biological Sciences, 2000. http://hdl.handle.net/11427/6116en_ZA
dc.identifier.citationKwembeya, E. 2000. Studies in the Dryopteris inaequalis (Dryopteridaceae) complex. University of Cape Town.en_ZA
dc.identifier.ris TY - Thesis / Dissertation AU - Kwembeya, Ezekeil Gwinyai AB - The taxonomy of Dryopteris inaequalis complex is reviewed. The use of a large sample size permitted quantification of variation within and among groups. Phenetic methods in this study revealed the existence of six groups, five formerly described taxa and one new taxon, D. pseudopentheri sp. ined. The new species is defined on both macromorphological grounds. Dryopteris lewelleana Pic.Serm. and d. inaequalis (Schltdl.) Kuntze var. atropaleacae Schelpe are placed in synonymy under D.fadenii Pic.Serm. and D.inaequalis respectively. The phylogeny of the complex is reconstructed using cladistic analysis of morphological characters. Dryopteris manniana (Hook.) C.Chr., the probabl sister species is used as an outgroup for the analysis. Phylogenetic analysis revealed that there are four monphyletic species and two metataxa in the complex. Evidence from Scanning Electron Microscopy, micromorphology, macromorphology and cytology is used as a basis for classification. Trichome characters, indusium, spore and guard-cell sizes proved to be of great taxonomic utility in defining species and cytotypes in the complex. Guard-cell and spore sizes in the different taxa are positively correlated to ploidal level. Illustrations of some microcharacters are provided. The taxonomic treatment includes a key, descriptions of the species based on the characters studied and a distribution map. DA - 2000 DB - OpenUCT DP - University of Cape Town LK - https://open.uct.ac.za PB - University of Cape Town PY - 2000 T1 - Studies in the Dryopteris inaequalis (Dryopteridaceae) complex TI - Studies in the Dryopteris inaequalis (Dryopteridaceae) complex UR - http://hdl.handle.net/11427/6116 ER - en_ZA
dc.identifier.urihttp://hdl.handle.net/11427/6116
dc.identifier.vancouvercitationKwembeya EG. Studies in the Dryopteris inaequalis (Dryopteridaceae) complex. [Thesis]. University of Cape Town ,Faculty of Science ,Department of Biological Sciences, 2000 [cited yyyy month dd]. Available from: http://hdl.handle.net/11427/6116en_ZA
dc.language.isoengen_ZA
dc.publisher.departmentDepartment of Biological Sciencesen_ZA
dc.publisher.facultyFaculty of Scienceen_ZA
dc.publisher.institutionUniversity of Cape Town
dc.subject.otherSystematics and Biodiversity Sciencesen_ZA
dc.titleStudies in the Dryopteris inaequalis (Dryopteridaceae) complexen_ZA
dc.typeMaster Thesis
dc.type.qualificationlevelMasters
dc.type.qualificationnameMScen_ZA
uct.type.filetypeText
uct.type.filetypeImage
uct.type.publicationResearchen_ZA
uct.type.resourceThesisen_ZA
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