Search for dissertations about: "Systematic Botany"
Showing result 6 - 10 of 42 swedish dissertations containing the words Systematic Botany.
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6. Desert Plants and Deserted Islands : Systematics and Ethnobotany in Caryophyllaceae
Abstract : Background. Caryophyllaceae is a large and cosmopolitic flowering plant family, however the systematics of many of its basal groups has been unclear, due to a lack of unambiguous morphology. Some members of Caryophyllaceae are used medicinally, e.g. READ MORE
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7. Systematics of Lindenbergia and Campylanthus (Scrophulariaceae)
Abstract : The plant life of north-east Africa and Arabiahas received much interest in recent years, a fact illustrated by the various ongoing flora projects in the region, e.g., the Flora of Ethiopia and Eritrea, Flora of Somalia and Flora of Arabia. READ MORE
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8. Reticulate Evolution in Diphasiastrum (Lycopodiaceae)
Abstract : In this thesis relationships and the occurrence of reticulate evolutionary events in the club moss genus Diphasiastrum are investigated. Diphasiastrum is initially established as a monophyletic group within Lycopodiaceae using non recombinant chloroplast sequence data. READ MORE
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9. Effects of increased UV-B radiation on the lichen Cladonia arbuscula spp. mitis: UV-absorbing pigments and DNA damage
Abstract : Lichens, a form of symbiosis between a fungal and a photosynthetic partner, are believed to be a group that evolved early in the history of terrestrial life. As a consequence, they probably experienced higher ultraviolet (UV) radiation fluxes than at present. READ MORE
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10. Big survivors with small flowers : Fossil history and evolution of Laurales and Chloranthaceae
Abstract : This thesis provides palaeobotanical evidence on Cretaceous Laurales and Chloranthaceae, and discusses and evaluates the material in a phylogenetic framework. Chloranthaceae extend back to the Barremian or Aptian and Laurales to the Albian (both Early Cretaceous). READ MORE