Published July 27, 2017 | Version v1

Cheiridopsis (Aequifoliae) H.E.K.Hartmann

  • 1. Department of Biodiversity and Conservation Biology, University of the Western Cape, Private Bag X 17, Bellville, Cape Town 7535, South Africa & Compton Herbarium, South African National Biodiversity Institute, Private Bag X 7, Claremont, Cape Town 7735, South Africa
  • 2. Department of Biodiversity and Conservation Biology, University of the Western Cape, Private Bag X 17, Bellville, Cape Town 7535, South Africa
  • 3. Bolus Herbarium, Department of Biological Sciences, HW Pearson Building, University of Cape Town, Rhodes Gift, 7707 Rondebosch, South Africa
  • 4. Compton Herbarium, South African National Biodiversity Institute, Private Bag X 7, Claremont, Cape Town 7735, South Africa & Department of Botany and Plant Biotechnology, University of Johannesburg, P. O. Box 524, Auckland Park, Johannesburg 2006, South Africa

Description

3.3. Cheiridopsis subgenus Aequifoliae H.E.K.Hartmann, Biblioth. Bot. 136: 59. 1983.

Type: C. denticulata (Haw.) N.E.Br.

Compact perennial shrubs. Leaves isophyllous, with subsequent pairs equal along stem; surface velvety, with no epidermal elevations formed above subhypodermal idioblasts; epidermal cells forming blunt papillae or trichomes, sheath always only partially enclosing the emerging leaf pair during dormancy. Flowers cream to yellow, rarely orange or red. Capsules on erect pedicels; top flat to centrally elevated, but never rounded, base funnel-shaped; valve wings reduced to awns; covering membranes undulate with low distal rims; closing bodies usually large, blocking at least ¾ of locule, seldom smaller, blocking at least ½ of locule. Seeds smooth.

Diagnostic characters and distribution: Cheiridopsis subgenus Aequifoliae is the smallest subgenus in Cheiridopsis, with eight species. The subgenus shares the isophyllous leaves (equal subsequent pairs) and erect pedicels with subgenus Odontophoroides but differs by the capsule tops that are flat or centrally elevated on the top (Figs 5, 7 I).

The subgenus has the most northern distribution extending from southern Namibia to Clanwilliam and eastwards to Pofadder, with two centres of diversity in the Springbok-Steinkopf Region and the Richtersveld (Fig. 6 D).

Recognized species: Cheiridopsis brownii Schick & Tisch., C. caroli-schmidtii (Dinter & A.Berger) N.E.Br., C. denticulata (Haw.) N.E.Br., C. excavata L.Bolus, C. herrei L.Bolus, C. robusta (Haw.) N.E.Br., C. vanzylii L.Bolus, C. verrucosa L.Bolus.

Notes

Published as part of Powell, Robyn F., Boatwright, James S., Klak, Cornelia & Magee, Anthony R., 2017, Inclusion of Ihlenfeldtia and Odontophorus in Cheiridopsis (Ruschioideae: Aizoaceae) and insights into generic and subgeneric circumscription in the Conophytum clade, pp. 457-484 in Botanical Journal of the Linnean Society 184 (4) on page 478, DOI: 10.1093/botlinnean/box037, http://zenodo.org/record/7868488

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Additional details

Biodiversity

Scientific name authorship
H.E.K.Hartmann
Kingdom
Plantae
Phylum
Tracheophyta
Order
Caryophyllales
Family
Aizoaceae
Genus
Cheiridopsis
Taxon rank
subgenus