Systematics of Othonna (Asteraceae: Senecioneae: Othonninae) in southern Africa: the O. cacalioides L.f., O. natalensis Sch.Bip., and O. osteospermoides DC. groups of species and the identity of O. frutescens L.

被引：0
|
作者：
Magoswana, S. L. [1 ,2 ]
Boatwright, J. S. [2 ]
Magee, A. R. [3 ,4 ]
Manning, J. C. [3 ,5 ]
机构：
[1] South African Natl Biodivers Inst, Natl Herbarium, Private Bag X101, ZA-0001 Pretoria, South Africa
[2] Univ Western Cape, Dept Biodivers & Conservat Biol, Private Bag X17, ZA-7535 Cape Town, South Africa
[3] South African Natl Biodivers Inst, Kirstenbosch Res Ctr, Compton Herbarium, Rhodes Dr, ZA-7700 Cape Town, South Africa
[4] Univ Johannesburg, Dept Bot & Plant Biotechnol, POB 524,Auckland Park, ZA-2006 Johannesburg, South Africa
[5] Univ KwaZulu Natal, Sch Biol & Conservat Sci, Res Ctr Plant Growth & Dev, Private Bag X01, ZA-3209 Pietermaritzburg, South Africa
来源：
SOUTH AFRICAN JOURNAL OF BOTANY | 2025年 / 178卷
基金：
新加坡国家研究基金会;
关键词：
Morphology; Nomenclature; Southern Africa; Synonyms; Taxonomy;
D O I：
10.1016/j.sajb.2025.01.003
中图分类号：
Q94 [植物学];
学科分类号：
071001 ;
摘要：
The largely southern African genus Othonna L. (Asteraceae: Senecioneae: Othonninae) is currently the subject of ongoing taxonomic investigations. Here we review the taxonomy of three small species-groups with radiate capitula. The O. cacalioides L.f. species-group comprises five species of dwarf succulents with tuber-like caudex and small capitula; the O. natalensis Sch.Bip. species-group includes two caespitose species from the summer-rainfall Drakensberg Escarpment; and the O. osteospermoides DC. species-group comprises three species of softly woody shrublets with large capitula. We provide descriptions, complete nomenclature and typification, illustrations and geographical distribution of the species. In addition we conclude that the name O. frutescens L. is not an illegitimate superfluous name for Cineraria othonnites L. as has been previously assumed by early authors. The only original material seems to be an illustration and we accordingly select this illustration as lectotype. This illustration matches Othonna coronopifolia L. and we accordingly reduce O. frutescens L. to synonymy under O. coronopifolia L. (c) 2025 SAAB. Published by Elsevier B.V. All rights are reserved, including those for text and data mining, AI training, and similar technologies.
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页码：1 / 17
页数：17
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