Four new species of Ursinia (Asteraceae, Anthemideae) from South Africa, with an updated key to the genus in Namaqualand

Anthony R. Magee; James S. Boatwright; Ladislav Mucina

doi:10.11646/phytotaxa.177.3.1

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Four new species of Ursinia (Asteraceae, Anthemideae) from South Africa, with an updated key to the genus in Namaqualand

Journal article

Peer reviewed

Four new species of Ursinia (Asteraceae, Anthemideae) from South Africa, with an updated key to the genus in Namaqualand

Anthony R. Magee, James S. Boatwright and Ladislav Mucina

Phytotaxa, Vol.177(3), pp.137-145

2014

DOI: https://doi.org/10.11646/phytotaxa.177.3.1

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Abstract

Compositae

Gariep Center of Endemism

Greater Cape Floristic Region

Kamiesberg Center of Endemism

Recent field and herbarium studies of the southern African genus Ursinia (Anthemideae, Asteraceae) in Namaqualand, South Africa, have revealed greater morphological variability than currently accommodated and a high percentage of misidentified specimens. In an attempt to remedy this we herein describe four new species (Ursinia arida, U. glandulosa, U. kamiesbergensis and U. laciniata) and provide a key to the species in the region, together with illustrations of their involucral bracts and paleae. The species can be distinguished by a combination of their life history, vestiture, presence or absence of appendages on the paleae, and shape of the involucral bracts and their scarious apices.

Details

Title: Four new species of Ursinia (Asteraceae, Anthemideae) from South Africa, with an updated key to the genus in Namaqualand
Authors/Creators: Anthony R. Magee - Compton Herbarium, South African Natl Biodivers Inst, ZA-7735 Cape Town, South Africa
James S. Boatwright - University of the Western Cape
Ladislav Mucina - Univ Western Australia, Sch Plant Biol, Perth, WA 6009, Australia
Publication Details: Phytotaxa, Vol.177(3), pp.137-145
Publisher: Magnolia Press
Number of pages: 9
Grant note: National Geographic Society (Washington D.C.); National Geographic Society University of Johannesburg National Research Foundation Department of Science and Technology; Department of Science & Technology (India)
Identifiers: 991005579933307891
Murdoch Affiliation: Centre for Terrestrial Ecosystem Science and Sustainability
Language: English
Resource Type: Journal article

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Collaboration types: Domestic collaboration; International collaboration
Citation topics: 3 Agriculture, Environment & Ecology; 3.64 Phylogenetics & Genomics; 3.64.34 Phylogenetic Relationships
Web Of Science research areas: Plant Sciences
ESI research areas: Plant & Animal Science