New species of Asclepias (Apocynaceae), Baphia (Leguminosae), Cochlospermum (Bixaceae) and Endostemon (Lamiaceae) from the Kalahari sands of Angola and NW Zambia, with one new combination in Vangueria (Rubiaceae)
Goyder DJ, Davies N, Finckh M and others. PhytoKeys, September 2023.
Read the paper Free to read · doi:10.3897/phytokeys.232.110110
What this paper is about
Four new plant species from the Kalahari sand savannas of central Angola and northwest Zambia, one of them an Asclepias.
These are geoxylic suffrutices, woody plants that keep almost all their bulk underground. One is assessed as Least Concern because the habitat is remote and not under agricultural pressure; the others are Data Deficient.
Summarised here from the abstract below. Not the authors’ words.
Abstract
Four new species are described from central and eastern Angola and adjacent NW Zambia. All occur in Kalahari sand savannas rich in endemic and more widely distributed geoxylic suffrutices. Despite being known from very few collections, the conservation status of one of these new species is assessed as Least Concern, as these grasslands are nutrient-poor, are in remote sparsely populated areas, and are not threatened with conversion to agriculture. The remaining three are treated as Data Deficient. In addition, one new combination is provided for Ancylanthosrubiginosus Desf. under Vangueria as V.rubiginosa (Desf.) Lantz is an illegitimate later homonym. We also make orthographic corrections to specific epithets commemorating Ilse von Nolde, a collector who made important collections from Quela in Malange in the 1930s.
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Milkweed USA. (2026). New species of Asclepias (Apocynaceae), Baphia (Leguminosae), Cochlospermum (Bixaceae) and Endostemon (Lamiaceae) from the Kalahari sands of Angola and NW Zambia, with one new combination in Vangueria (Rubiaceae) (listing). Retrieved DATE, from https://milkweedusa.com/research/new-species-of-asclepias-apocynaceae-baphia-leguminosae-cochlospermum-bixaceae-2023/
"New species of Asclepias (Apocynaceae), Baphia (Leguminosae), Cochlospermum (Bixaceae) and Endostemon (Lamiaceae) from the Kalahari sands of Angola and NW Zambia, with one new combination in Vangueria (Rubiaceae) (listing)." Milkweed USA, 2026, https://milkweedusa.com/research/new-species-of-asclepias-apocynaceae-baphia-leguminosae-cochlospermum-bixaceae-2023/. Accessed DATE.
Milkweed USA. "New species of Asclepias (Apocynaceae), Baphia (Leguminosae), Cochlospermum (Bixaceae) and Endostemon (Lamiaceae) from the Kalahari sands of Angola and NW Zambia, with one new combination in Vangueria (Rubiaceae) (listing)." Last modified 2026-08-01. Accessed DATE. https://milkweedusa.com/research/new-species-of-asclepias-apocynaceae-baphia-leguminosae-cochlospermum-bixaceae-2023/.
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title = {New species of Asclepias (Apocynaceae), Baphia (Leguminosae), Cochlospermum (Bixaceae) and Endostemon (Lamiaceae) from the Kalahari sands of Angola and NW Zambia, with one new combination in Vangueria (Rubiaceae) (listing)},
author = {{Milkweed USA}},
year = {2026},
url = {https://milkweedusa.com/research/new-species-of-asclepias-apocynaceae-baphia-leguminosae-cochlospermum-bixaceae-2023/},
note = {Accessed DATE}
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