Search for dissertations about: "systematisk botanik"
Showing result 6 - 10 of 53 swedish dissertations containing the words systematisk botanik.
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6. Evolutionary Studies in Asterids Emphasising Euasterids II
Abstract : This thesis deals with evolutionary relationships within the asterids, a group of plants comprising about one-third of all flowering plants.Two new families are recognised: Pennantiaceae and Stemonuraceae. The woody Pennantia from New Zealand and Australia is the sole genus of Pennantiaceae. READ MORE
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7. Phylogenetic Studies in the Euasterids II : with Particular Reference to Asterales and Escalloniaceae
Abstract : The present study is concerned with the evolutionary relationships among the Euasterids II, a group of angiosperms that includes the orders Apiales, Aquifoliales, Asterales, and Dipsacales together with several small, poorly known families yet unplaced as to order.Parsimony analysis of nucleotide sequence data from the chloroplast genes atpB, ndhF and rbcL together with morphological data are used to construct a phylogeny of the order Asterals, which in the present sense includes 11 families and more than 26 000 species. READ MORE
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8. Systematics of Echiochilon and Ogastemma (Boraginaceae), and the Phylogeny of Boraginoideae
Abstract : Echiochilon, Ogastemma and Sericostoma are revised resulting in the recognition of 15 species of Echiochilon and one Ogastemma species. Several species are placed in synonymy and three new species are described, E. baricum, E. callianthum and E. READ MORE
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9. 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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10. Variation in Pseudorchis albida s.l. (Orchidaceae) and Carex capitata s.l. (Cyperaceae) : Morphology, genetic diversity, ecology and systematics
Abstract : In the Scandinavian flora, several species-pairs where one member is an alpine species andthe other is a closely related lowland species, have been described. The aim of this studywas to investigate two such examples, viz. Pseudorchis albida s.s. READ MORE