A taxonomic revision of the Othonna auriculifolia Less. group (Asteraceae: Senecioneae: Othonninae)

Authors

  • Luvo Magoswana Department of Biological and Agricultural Sciences, Sol Plaatje University, Kimberley, South Africa; Compton Herbarium, South African National Biodiversity Institute, Cape Town, South Africa. https://orcid.org/0000-0002-6234-7857
  • Stephen Boatwright Department of Biodiversity & Conservation Biology, University of the Western Cape, Bellville, Cape Town, South Africa. https://orcid.org/0000-0003-1250-4874
  • Anthony Magee Compton Herbarium, South African National Biodiversity Institute, South Africa; Department of Botany and Plant Biotechnology, University of Johannesburg, Auckland Park, Johannesburg, South Africa https://orcid.org/0000-0002-7063-7299
  • John Manning Compton Herbarium, South African National Biodiversity Institute, South Africa; Research Centre for Plant Growth and Development, University of KwaZulu-Natal, South Africa https://orcid.org/0000-0003-2886-8787

DOI:

https://doi.org/10.38201/btha.abc.v52.i1.5

Keywords:

geophytes, Othonna auriculifolia, O. taraxacoides, nomenclature, southern Africa, synonyms, succulent

Abstract

A taxonomic revision is presented for the two geophytic species of Othonna L. (Asteraceae: Senecioneae: Othonninae) distinguished by a condensed caudex without evident internodes. These species are morphologically and phylogenetically distinct from the remaining geophytic species. This account includes descriptions, complete nomenclature and typification, illustrations and geographical distribution. We recognise the following two species: O. auriculifolia with radiate capitula and mature pappus 3–25 mm long, and O. taraxacoides (DC.) Sch. Bip. with disciform capitula and mature pappus 3–8 mm long. Both species are vegetatively variable.

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References

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Published

2022-03-18

How to Cite

Magoswana, L., Boatwright, S., Magee, A., & Manning, J. (2022). A taxonomic revision of the Othonna auriculifolia Less. group (Asteraceae: Senecioneae: Othonninae). Bothalia, African Biodiversity & Conservation, 52(1). https://doi.org/10.38201/btha.abc.v52.i1.5

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Section

Original research, Reviews, Strategies, Case studies