Typification of Names in Nine Species of Arctotis (Asteraceae, Arctotideae) from the Succulent Karoo, South Africa

2010·4.5 MB·English

by  Robert J Mckenzie

Typification of Names in Nine Species of Arctotis (Asteraceae,
Arctotideae) from the Succulent Karoo, South Africa
Robert J. McKenzie* and Nigel P. Barker
Molecular Ecology and Systematics Group, Department of Botany, Rhodes University, P.0. Bi
94, Grahamstown, 6140, South Africa. * Author for correspondence: [email protected]
Abstract . In preparation for the treatment of published by Aiton (1789), who recorded the
Arctotis L. (Asteraceae) in the upcoming Conspectus introduction of the species to the Royal Botanic
of the Trans-Cape Succulent Karoo Flora of South
Africa, the typification of names and synonymy for accompanied Thunberg on collecting expeditions into
the interior of the Cape colony in 1773 and 1774
Karoo region, South Africa, are clarified. The author (Gunn & Codd, 1981). Although the descriptions for
new names published by Aiton (1789) were prepared
argentea Alton, and the lectotype is selected. In
C. Dryander (Stafleu & Cowan, 1976), under Article
Jacq., A. campanulata DC., A. campanulata var.
puberula DC., A. canescens DC., A. cineraria Jacq., A. clature (ICBN; McNeill et al., 2006) the name A.
cuprea Jacq., A. denudata Thunb., A. diffusa Thunb., argentea must be attributed to Aiton.
A.fastuosa Jacq., A.flaccida Jacq., A. flammea Jacq., A sheet in the Herbarium of the Natural History
A. glabrata Jacq., A. laevis Thunb., A. leucanthemoides Museum, London (BM), is annotated in pencil
Jacq., A. maximilianu Schltr. ex Beauverd, A. pusilla “Arctotis argentea, Thb.” and a label is attached
DC., A. revoluta Jacq., A. rosea Jacq., A. squarrosa bearing the inscription “Hort. Kew. 1777—Sem. E
Jacq., A. venidioides DC., and Venidium aureum DC.
Key words: Arctotideae, Arctotidinae, Arctotis, from material cultivated at Kew, and because its
Asteraceae, Compositae, South Africa.
argentea to Kew in 1774 and precedes publication of
Arctotis L. is the largest genus in the subtribe the descript i in Aiton (1789), this sheet is suitable
As(Kpreaccrtioiset sid,e itna naaedl,. , is2c o0wm0i9dp)er.li ysTi nhdgei s trmaipbapuirntoe xdci eminnat teesrlo yuo tfh 6et0arnx otAnoo fmri7ci0ca dspeesccrimipetino ns of Acoitnosnis t(e1n7t8 9)w aitnhd Tthheu nbmerogr p(h1o7l9o9g)i.c al
southern Africa. The taxonomy of Arctotis is especially Arctotis argentea Aiton, Hort. Kew. 3: 273. 1789.
TYPE: [South Africa.] Cape of Good Hope: Hort.
problems have been resolved (McKenzie et al., 2006, Kew. Sem. E Cap. bon. spei [Hortus Kewensis
2008a, b; McKenzie & Barker, 2007), but many names semen e Capite bonae spei], 1777, s. coll.
are still in need of typification. In preparation for the
treatment of Arctotis in the upcoming Conspectus of the
Trans-Cape Succulent Karoo Flora of South Africa Lectotypification of Arctotis auriculata
(Snijman, in prep.), we herein clarify the synonymy and
typification of names for nine Arctotis species that occur Arctotis auriculata Jacq. is a robust, showy species
Jwreuigrtghioeinnn stha pe(1 pg9reo9ox1gi)mr aaapsthe iltcyh aecr eoSaru roecfsc spuooluenntdhts e rKtnoa Arotfhore ic raep gdaierotf nin.o efTd t hbhiyes Asinfrgiclea . Tshheee st pe(Wcie s0 w00a6s 6d3e3s)c riibne dt hbey JNacaqtuurihni s(t1o7r9is7c)h. eAs
er aridity. Jacquin Herbarium, is annotated as A. auriculata and
Lectotypification of Arctotis argentea bnyev Tery cphuob liNshoerldin. dThh ei nm 1a9te8r0ia, l baugtr etehse wtyitphi ftihcea tdioensc wripas-
formally designated the lectotype of A. auriculata Jacq.
Novon 20: 298-302. Published on 13 September 2010. doi: 10.3417/2009031

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treated as conspecific and synonyms of A. revoluta.
Specimens labeled as A cuprea, A. glabrata, and A.