Plants photographed elsewhere in Namibia (not on Kyffhäuser)
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Raphionacme haeneliae Venter & R.L.Verh.


Raphionacme haeneliae

Leaves



Family: Apocynaceae
Full name: Raphionacme haeneliae Venter & R.L.Verh.
Location: Along B1, South of Mariental (2417DD)
ID status: Fairly certain
Afrikaans common name(s): -
English common name(s): -
Synonym(s): -
Status: Native
Description: Succulent leaves.

Spreading, glabrous herb up to 0.3 m high. Tubers few to numerous, up to 250 mm long, narrowly cylindrical-ovoid. Aerial stems one to few, up to 0.4 m long, 4–7 mm diameter, erect to spreading, succulent-herbaceous, branching lateral. Leaves spreading, mostly folded, sub-sessile to shortly petiolate; blade 50–80×10–40 mm, broadly to narrowly ovate, succulent,green, glossy, margin undulate, secondary veins hardly visible, arching and 6–8 to a side, apex recurvate and acute to acuminate,base obtuse. Inflorescences appearing before leaves, terminal, branched, each branch ±3-flowered, peduncles 3–5 mm long, pedicels 2–3 mm long; bracts 1–2 mm long, ovate. Corolla tube 2 mm long, campanulate; lobes 4×2 mm, spreading, oblong–ovate, obtuse, outside lemon-green, inside lemon-green flushed pink in centre. Corona lemon-green, coronal feet conical, free; lobes 4–5 mm long, filiform, apex tortuous. Stamens from inner base of coronal feet; filaments 1 mm long, filiform; anthers 1.5×0.5 mm, elliptic, white, full length slits. Ovaries ±1 mm long, style ±1 mm long, terete; style-head ±1.5×1.4 mm, broadly ovoid; translators ±2 mm long, spoon broadly ovate. Gynostegium elevated above corolla mouth. Follicles paired, widely divergent, 65–70×5–6 mm, linear-ovoid with corniculate apex. Seeds 10×4 mm, oblong–elliptic, concave, surface striate-verrucose, brown; coma 12–15 mm long, whitish (Venter and Verhoeven: Figs. 1–5 (1996)). Distribution and ecology: R. haeneliae is found in the Namib-Naukluft Park in Namibia (Fig. 9) under true desert conditions at 200–500 m altitude. The species is seldom seen as it appears above ground only after the rare rain shower, which may occur with years inbetween. However, after rains it is quite common on the white gravelly sand plains, found between the low dunes. (from "A taxonomic revision of Raphionacme" by HJT Venter, South African Journal of Botany, 75 (2009). p. 292–350)
Link(s) African Plant Database
JSTOR Plant Science
Kew Herbarium Catalogue
BGBM Berlin-Dahlem - Virtual Herbarium
Züricher Herbarien
iNaturalist (Namibia / Alex Dreyer)
iNaturalist (Namibia)
iNaturalist (southern Africa)
Flora of Zimbabwe
Fleurs de notre Terre - Galerie Namibie
Tree Atlas of Namibia
Photographer: AA Dreyer
Date of photograph: 21 Feb 2018
Camera make: Canon
Camera model: EOS 7D
Lens aperture: f/9.0
Shutter speed: 1/2000 s
ISO speed: 1000
Content last updated: 18 Jun 2020


Note: The identification of some of the plants on this website is not 100% certain. Any comments will be highly appreciated. I would also be willing to supply higher resolution images upon request. Please contact me at the e-mail address given below.

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