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Title: A taxonomic revision of the genus Matthiola R.Br. (Cruciferae) and related genera
Author: Gowler, Zoe R.
Awarding Body: University of Edinburgh
Current Institution: University of Edinburgh
Date of Award: 1998
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A global taxonomic review of the Cruciferae genera Matthiola R.Br., Lonchophora Durieu, Diceratella Boiss. and Morettia DC. is presented. The fifty species of Matthiola were investigated taxonomically, with the aim of improving their classification and giving a better understanding of their relationships and evolution. The species are widely distributed over Macaronesia, the Mediterranean, NE Africa, the Middle East and SW Asia, with one species in S Africa. Exploratory work in the fields of cytology, anatomy and molecular biology was undertaken to determine the usefulness of such techniques in producing new taxonomic characters and to establish techniques that are suitable for this group of plants. A major part of the investigation was to determine and clarify the generic limits, especially with reference to the monotypic genus Lonchophora and the genus Microstigma Trautv., both of which were formerly included in Matthiola. The genera Diceratella and Morettia were also included in the investigation as there has been much movement of species between these genera by taxonomists in recent years. Nine informally designated species-groups of Matthiola are recognised and supported by the phenetic numerical analysis, although only two species-groups are fully supported by the cladistic analysis. Intuitive, phenetic and cladistic analyses all confirm that Lonchophora is a part of Matthiola, belonging to Species-Group LONGIPETALA, and that Microstigma is closely allied to Matthiola, but remains distinct. Diceratella and Morettia are very close to each other but somewhat more distantly related to Matthiola. Three species of Matthiola are reduced to synonymy, two of which are reduced to subspecific level. A new subspecies of Matthiola montana Boiss. is recognised.
Supervisor: Not available Sponsor: Not available
Qualification Name: Thesis (Ph.D.) Qualification Level: Doctoral
EThOS ID:  DOI: Not available