Arctotis gazanioides (Asteraceae: Arctotideae), a new species from the Bokkeveld Plateau, Northern Cape Province, South Africa

Authors

  • McKenzie Robert Department of Plant Sciences and Afromontane Research Unit, University of the Free State, Private Bag X13, Phuthaditjhaba, 9866, South Africa https://orcid.org/0000-0001-7054-3308
  • Nick Helme PO Box 22652, Scarborough, 7975, South Africa

DOI:

https://doi.org/10.38201/btha.abc.v52.i1.10

Keywords:

Arctotidinae, Morphology, Systematics, Taxonomy

Abstract

Background: A taxonomic revision of Arctotis L. (Asteraceae) is ongoing. A previous botanical survey of the Avontuur Nature Reserve on the Bokkeveld Plateau, Northern Cape, located a potentially unnamed Arctotis taxon associated with seasonally wet sites.
Objectives: To compare the morphology of the Arctotis from the Avontuur Nature Reserve with morphologically comparable species of Arctotis and to determine its taxonomic status.
Method: The morphology of fresh collections, herbarium specimens, and relevant type material was examined. All relevant literature was consulted.
Results: The Avontuur Arctotis is morphologically distinct from A. acaulis L. var. acaulis, A. acaulis var. undulata DC. and A. verbascifolia Harv.
Conclusion: Arctotis gazanioides R.J.McKenzie & Helme is described as a new species distinguished by its branching rhizomatous root system with abundant fibrous adventitious roots, and discolorous leaves that are simple lanceolate, lanceolate-ovate to lanceolate-elliptic, or pinnatisect with a lanceolate to lanceolate-elliptic terminal lobe.

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Published

2022-06-02

How to Cite

Robert, M., & Helme, N. (2022). Arctotis gazanioides (Asteraceae: Arctotideae), a new species from the Bokkeveld Plateau, Northern Cape Province, South Africa. Bothalia, African Biodiversity & Conservation, 52(1). https://doi.org/10.38201/btha.abc.v52.i1.10