Ceropegia (sect. Chamaesiphon) Huber 1957
Creators: name: Heiduk, Annemarie
name: Crouch, Neil R.
name: Styles, David G. A.
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Gentianales
Apocynaceae
Ceropegia

description: The following key distinguishes the 10 brood-site mimicking species of Ceropegia sect. Chamaesiphon
which occur in KwaZulu-Natal and may be confused with C. gilboaensis:
1. Stems prostrate...................................................................................................................................................................................2
- Stems sub-erect to erect......................................................................................................................................................................6
2. Flowers flat or shallowly campanulate, fused portion of corolla ±1/3 or less...................................................................................3
- Flowers steep cylindrical-campanulate, fused portion of corolla ±1/2..............................................................................................4
3. Corolla flat or shallowly saucer-shaped, glabrous..............................................................................................................................5
- Corolla campanulate, with white trichomes on upper surface ............................................................................................. C. remota
4. Corolla lobe bases purple mottled, distinctly fluted, mouth 5-star-shaped, corona lobes not covering the style head.. C. ngomensis
- Corolla lobe bases with broken, transverse, burgundy bands, mouth not 5-star shaped, corona lobes covering style head................ ....................................................................................................................................................................................... C. gilboaensis
5. Corolla flat, less than ± 12 mm in diameter ................................................................................................................... C. pulchellior
- Corolla shallowly saucer-shaped, 17–20 mm in diameter..................................................................................................... C. coddii
6. Corolla glabrous .......................................................................................................................................................... C. modestantha
- Corolla papillate or with trichomes on upper surface........................................................................................................................7
7. Corolla bowl-shaped, fused portion of corolla ±1/2...................................................................................................... C. chlorozona
- Corolla (shallowly) campanulate, fused portion of corolla ±1/3 or less............................................................................................8
8. Leaves narrowly elliptic-lanceolate, trichomes on upper corolla surface ......................................................................... C. australis
- Leaves ovate to elliptic to lanceolate, with or without trichomes on corolla lobe margins...............................................................9
9. Flowers 2–several, corolla papillate, rugose ........................................................................................................................ C. perdita
- Flowers solitary, corolla margins with long trichomes, tubers finger-like, irregularly shaped...................................... C. petrophila
description: Published as part of Heiduk, Annemarie, Crouch, Neil R. & Styles, David G. A., 2023, Ceropegia gilboaensis (Apocynaceae), a new species from the Midlands of KwaZulu-Natal, South Africa, pp. 125-136 in Phytotaxa 591 (2) on page 134, DOI: 10.11646/phytotaxa.591.2.4, http://zenodo.org/record/10121325