Search for dissertations about: "herbarium"

Showing result 1 - 5 of 7 swedish dissertations containing the word herbarium.

  2. 1. A Utopian Quest for Universal Knowledge : Diachronic Histories of Botanical Collections between the Sixteenth Century and the Present

    Author : Anna Svensson; Sabine Höhler; Peder Roberts; Sverker Sörlin; Dániel Margócsy; KTH; []
    Keywords : HUMANIORA; HUMANITIES; history of botany; utopia; Oxford University Botanic Garden; pressed plants in books; botanical collection; classification; herbarium; Global Plants; digitisation; database; conservation; natural dyeing; botanikhistoria; utopi; Oxford University Botanic Garden; pressade växter i böcker; botaniska samlingar; klassifikation; herbarium; Global Plants; digitalisering; databas; växtfärgning; Historiska studier av teknik; vetenskap och miljö; History of Science; Technology and Environment;

    Abstract : This thesis explores the history of botany as a global collection-based science by tracing parallels between utopian traditions and botanical collecting, from their sixteenth-century beginnings to the present. A range of botanical collections, such as gardens, herbaria and classification systems, have played a central role in the struggle to discover a global or universal scientific order for the chaotic, diverse and locally shaped kingdom of plants. READ MORE

  4. 2. Bridging the past to the present: investigating species boundaries with herbarium specimens and next-generation-sequencing. A case study of circumpolar Silene sect. Physolychnis

    Author : Anne-Sophie Quatela; Göteborgs universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; allele phasing; Bayesian inference; herbarium specimen; long read sequencing; multispecies coalescent; Silene; systematics; target capture; species complexes;

    Abstract : During the recent decades, genetic information enclosed in herbarium collections have been partly revealed, largely due to the fast-moving high-throughput sequencing technologies. However, the genetic outcome from herbarium material is limited by its degradation over time, often worsened by certain preservation methods. READ MORE

  5. 3. Taxonomy of Schistidium (Grimmiaceae, Bryophyta)

    Author : Birgitta Bremer; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : Schistidium Brid. is a bryophyte genus mainly distributed in temperate to arctic zones. This revision is based on field, herbarium, and literature studies. There are descriptions of the genus and the 12 species and discussions of morphology, relationships, history, nomenclature, habitat, and distribution, and keys to accepted taxa. READ MORE

  6. 4. Variation in Pseudorchis albida s.l. (Orchidaceae) and Carex capitata s.l. (Cyperaceae) : Morphology, genetic diversity, ecology and systematics

    Author : Lars-Gunnar Reinhammar; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Ecology; Pseudorchis; Carex; morphologic variation; allozymes; immigration history; regeneration niche; biodiversity; ordinations; Ekologi; Terrestrial; freshwater and marine ecology; Terrestisk; limnisk och marin ekologi; systematisk botanik; Systematic Botany;

    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

  7. 5. Desert Plants and Deserted Islands : Systematics and Ethnobotany in Caryophyllaceae

    Author : Anneleen Kool; Mats Thulin; Gudrun Kadereit; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; BEAST; Corrigiola; DNA barcoding; Morocco; Pollichia; Polycarpon; Polycarpaea; RAxML; Sanctambrosia; Spergula; Spergularia; Sphaerocoma;

    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