Publication: J. S. African Bot. 5: 65 1939
Origin and Habitat
Eastern end of the Baviaanskloof, Cape Province, South Africa.
Habitat and ecology: Huernia longii is known growing at two localities separated by about 3 km. At both the plants were growing wedged among pebbles on small flat areas on the otherwise steep conglomerate slopes (of about 45° inclination)closely intermingled with tufted grasses among shrubs. The vegetation on the slopes themselves consisted mainly of succulents (Euphorbia polygona, Aloe, Haworthia and various Crassulas) with occasional larger non-succulent bushes.
Bibliography
Major references and further lectures
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P.V. Bruyns “A new combination Huernia longii subsp. echidnopsoides” Bradleya: yearbook of the British Cactus and Succulent Society, volume 2, 1984
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COWLING, R. M. (1982). “Patterns of plant endemism in the south-eastern Cape.” The Naturalist 27: 17-20.
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GIBBS RUSSEL, G. E. & ROBINSON. E. R. (1981). “Phytogeography and speciation in the vegetation of the eastern Cape”. Bothalia 13: 467-472.
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LEACH, L C. (1968). “Two new Stapeliads from the Cape Province”. J. S. Afr. Bot. 34: 135-142.
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LEACH, L C. (1976). “A Preliminary Review of the prominently papillose Huemia species (Asclepiadaceae)”. J. S. Afr. Bot. 42: 439-487.
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LEACH, L C. (1978). “Excelsa Taxonomic Series” No. 1. Salisbury, Zimbabwe.
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PILLANS, N. S. (1939). “Huernia longii Pillans” in Plantae Novae Africanae. J. S. Afr. Bot. 5: 65-66.
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WHITE, A. & SLOANE, B. L. (1937). “The Stapelieae” 3: 957-958. Pasadena, California.
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Focke Albers, Ulrich Mev “Illustrated Handbook of Succulent Plants: Asclepiadaceae” Springer Science & Business Media, 06 December 2012
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Doreen Court “Succulent Flora of Southern Africa” CRC Press, 01 June 2000
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Urs Eggli, Leonard E. Newton “Etymological Dictionary of Succulent Plant Names” Springer Science & Business Media, 29 June 2013