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Accepted Scientific Name: Huernia thuretii Cels ex Hérincq
Hort. Franc. 73 1866
Origin and Habitat: Graaff-Reinet to Willowmore and associated with the Sundays and Groot River valleys.
- Huernia brevirostris N.E.Br.
Huernia thuretii Cels ex Hérincq
Hort. Franc. 73 1866
- Huernia thuretii Cels ex Hérincq
- Stapelia thuretii (Cels ex Hérincq) Croucher
- Huernia bayeri L.C.Leach
- Huernia brevirostris N.E.Br.
- Huernia brevirostris subs. baviaana L.C.Leach
- Huernia brevirostris var. ecornuta (N.E.Br.) A.C.White & B.Sloane
- Huernia scabra var. ecornuta N.E.Br.
- Huernia brevirostris var. histrionica A.C.White & B.Sloane
- Huernia brevirostris var. immaculata (N.E.Br.) A.C.White & B.Sloane
- Huernia scabra var. immaculata N.E.Br.
- Huernia brevirostris subs. intermedia (N.E.Br.) L.C.Leach
- Huernia brevirostris var. longula (N.E.Br.) A.C.White & B.Sloane
- Huernia scabra var. longula N.E.Br.
- Huernia brevirostris var. pallida (N.E.Br.) A.C.White & B.Sloane
- Huernia scabra var. pallida N.E.Br.
- Huernia brevirostris var. parvipuncta A.C.White & B.Sloane
- Huernia brevirostris var. scabra (N.E.Br.) A.C.White & B.Sloane
- Huernia scabra N.E.Br.
- Huernia inornata Oberm.
- Huernia striata Oberm.
- Huernia thuretii var. primulina (N.E.Br.) L.C.Leach
- Huernia primulina N.E.Br.
- Huernia thuretii var. rugosa N.E.Br.
- Huernia primulina var. rugosa N.E.Br.
Description: Huernia brevirostris is an interesting low-growing succulents with stems rooting where they touch the ground. Readily offsets to form large low growing mounds. The flowers, which arise in succession at the base of the stems, are cup-shaped, with pale greenish-yellow to dull yellow petals finely spotted with red, and lined tube. The corona at the centers of the flower is dark purple.
Related species: Huernia brevirostris is linked closely to Huernia thureti. Due to its wide area of origin H. thuretii is very variable and many varieties with different degree of annulation of the disc and colouration of the corolla face was previously classified as different species, but most botanist agree on the fact that all the ones described until now, included H. brevirostris, should all be included in the H. thuretii.
Stems: Erect, rooting where they touch the ground, crowded in fairly large clumps, 3 - 6 cm long, 8-10(or more) mm thick, 4 to 5 angular, glabrous, glaucous-green, with acute small triangular tubercles (c.2-3 mm long) ending in a fleshy teeth.
Inflorescences: Often several on single stems, 1–4 flowered with flowers opening in rapid succession, sometimes irregularly borne along the stems. Peduncle (if present) long slender, erect. Pedicel 35 mm long erect, basally thickened often overtopping the stems.
Flowers: Campanulate, (15-)25-35(-40) mm across facing outwards. Sepals 6 - 7 mm long, 2 mm in diameter keeled. Corolla, glabrous, with a shallow bowl, mouth of the tube annulus-like, outside greenish-creamy inside cream-coloured, pale greenish, yellow or pale pink, 2.5 - 3 cm in diameter. Corolla-lobes,triangular, acute or weakly acuminate, 5 – 7 mm long, 6 - 9 mm broad, erect or ascending, sometimes revolute, outside finely scabrous, scabrous parts elevated, often with short stiff hairs inside papillose, conspicuously spotted with marron-red apex often furnished with fine hairs to papillae. Hairs colourless or white, to 2 mm long, slender, linear. Intermediate lobes protruding particularly in the bud. Corona black-purple. 4 mm long, 4.5 - 5 mm wide. Outer corona lobes approx 1 x 1.5 mm, dark crimson to black bifid or deeply lobed. Inner corona-lobes orange-brown to black approx 3 mm long, subulate, finely pointed, meeting each other above the anthers, above divaricate. basally with a prominent verrucose hump. Pollinia brownish.
Subspecies, varieties, forms and cultivars of plants belonging to the Huernia thuretii group
- Huernia bayeri L.C.Leach: has creamy white to yellow (or rarely pink) petals unspotted or sometimes finely spotted with red. Distribution: Eastern Cape.
- Huernia brevirostris N.E.Br.: has a greenish-yellow, creamy-yellow or pinkish corolla with red spots and lined tube. Distribution: Graaff-Reinet to Willowmore and associated with the Sundays and Groot River valleys
- Huernia brevirostris subs. baviaana L.C.Leach: has a darker brown densely spotted, papillose, corolla face. Inner corona lobes curving, divergent. Outer corona lobes whitish. Distribution: Baviaanskloof, from Willowmore in a south-eastern direction.
- Huernia brevirostris subs. intermedia (N.E.Br.) L.C.Leach: (intermediate between H. thuretii and H. thuretii var. primulina) has yellowish corolla face with few marking and is variable in nearly all characters. Distribution: Cradock-Pearston area and Sundays River.
- Huernia brevirostris var. parvipuncta A.C.White & B.Sloane: has a cream-coloured to yellowish corolla, rarely with a low annulus, with well marked and evenly spaced marron-red dots. Distribution: Eastern Cape.
- Huernia striata Oberm.: has cup-shaped flowers, with petals white to off-white with red or red-brown broken stripes and a maroon throat. Distribution: Tiras Mountains of Namibia.
- Huernia thuretii Cels ex Hérincq: has creamy-yellow flowers spotted or banded with red. The degree of annulation of the disc and colouration of the face is variable. Distribution: RSA (Eastern Cape) and Namibia.
- Huernia thuretii var. primulina (N.E.Br.) L.C.Leach: has longer more creeping stems. Corolla uniformly pale yellow a little larger with a low annulus and papillae rather dense prominent. Distribution: Eastern Cape.
Bibliography: Major refrerences and further lectures
1) Excelsa Taxon. Ser. 4: 182-187 1988
2) Focke Albers, Ulrich Meve “Illustrated Handbook of Succulent Plants: Asclepiadaceae: Asclepiadaceae” Volume 4 Springer, 2002
3) Doreen Court “Succulent Flora of Southern Africa” CRC Press, 01/Jun/2000
4) N. E. BROWN. “Flora Capensis” Vol 4, page 518 1909
5) White & Sloane “The Stapelieae” edn 2. 3: 879-882, 1170-1176 1937
6) Excelsa Taxonomic Series 4:184 1988
7) James Cullen, Sabina G. Knees, H. Suzanne Cubey “The European Garden Flora Flowering Plants: A Manual for the Identification of Plants Cultivated in Europe, Both Out-of-Doors and Under Glass” Cambridge University Press, 11/Aug/2011
8) Luckhoff “The Stapelieae of Southern Africa” Capetown, A.A. Balkema 1952
9) Bruyns, P.V. 2005. “Stapeliads of southern Africa and Madagascar.” Vol. II. Umdaus Press, Hatfield.
10)George Gilbert Green "Cacti and succulents" Pitman Pub. Corp., 1953
Cultivation and Propagation: Very easy to grow, it needs light shade to full sun (but tolerate shadow), very resistant to heat will also tolerate quite cold temperatures but avoid frost, best in a ventilated environment. It is quite resistant to the “Balck spot” disease of Asclepiads, Water regularly during the growing season, keep dry in winter. Use a gritty, well-drained soil.
Propagation: It is easily propagated by removing a cutting, sometimes with roots attached, in spring and summer, but seeds germinate readily if they are sown when fresh.
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