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Origin and Habitat: Adromischus marianiae var. hallii grows within 30 km of the coast of the northern Richtersveld (West Bushmanland), Republic of South Africa, and in south-western Namibia.
Adromischus marianae var. hallii (Hutchison) Toelken
Bothalia 12 (3): 391 (1978)
- Adromischus marianae var. hallii (Hutchison) Toelken
- Adromischus hallii Hutchison
- Adromischus casmithianus Poelln.
- Adromischus nanus Poelln.
Adromischus marianae (Marloth) A.Berger
Nat. Pflanzenfam., ed. 2 [Engler & Prantl] xviii a. 416 (1930)
Adromischus marianae var. immaculatus Uitewaal
- Adromischus marianae var. immaculatus Uitewaal
- Adromischus marianae f. alveolatus (Hutchison) Pilbeam
- Adromischus alveolatus Hutchison
- Adromischus marianae var. antidorcatum (Poelln.) Pilbeam
- Adromischus antidorcatum Poelln.
- Adromischus marianae f. herrei (W.F.Barker) Pilbeam
- Adromischus marianae f. multicolor Pilbeam
Adromischus marianae var. kubusensis (Uitewaal) Toelken
Bothalia 12 (3): 391 (1978)
- Adromischus marianae var. kubusensis (Uitewaal) Toelken
- Adromischus kubusensis Uitewaal
- Adromischus blosianus Hutchison
- Adromischus geyeri Hutchison
- Adromischus rodinii Hutchison
Description: Adromischus marianiae var. hallii is a rare plant from the South African/Namibian border, it has the broadest, thickest leaves within the Adromischus marianiae complex. Leaves are shorter, more rounded, chalky, grey-green either red spotted or plain. It is a dwarf to low-growing species, stays small and compact with tuberous roots and thick stems.
Leaves: Broadly obovate to circular, 1.5 - 2.5 cm long, greyish-white to reddish green, occasionally spotted, lamina smooth, dorsiventrally flattened to globose. Marginal ridge raised, horny in the upper half and usually undulate.
Subspecies, varieties, forms and cultivars of plants belonging to the Adromischus marianae group
- Adromischus geyeri Hutchison: has terete, chalky, mottled reddish-brown, grey-green leaves with a rounded tip. The horny margin is often not visible at the tip. Distribution: South Namibia. Diamond Area No.1.
- Adromischus marianae (Marloth) A.Berger: (var. marianiae) has grey to reddish darker markings along the leaves. It has the longest margin along the top edge of each leaf of any other variety. Distribution: Cederberg around Clanwilliam.
- Adromischus marianae f. alveolatus (Hutchison) Pilbeam: similar to f. herrei but with leaves which are shorter less acute, generally more robust, and with a very rough surface. Distribution: north of Concordia.
- Adromischus marianae var. antidorcatum (Poelln.) Pilbeam: has a a rough leaf surface similar to A. marianiae "immaculatus". Includes forms with short leaves. it is very variable. Distribution: Namaqualand, West. & South Bushmanland.
- Adromischus marianae var. hallii (Hutchison) Toelken: has the broadest, thickest leaves within the A. marianiae complex. Leaves are chalky, grey-green but red spotted forms have been found. Distribution: South Namibia, North & West Bushmanland.
- Adromischus marianae f. herrei (W.F.Barker) Pilbeam: has the roughest leaves and can resemble dried raisins! It is a small plant, characterised by petiolate leaves, thin stems and thin inflorescences. Distribution: Namaqualand coastal mountains.
- Adromischus marianae var. immaculatus Uitewaal: has cylindrical leaves, but with great variation in marking and texture. It usually has slighly rough leaves. Distribution: South Namaqualand, Knersvlakte.
- Adromischus marianae var. kubusensis (Uitewaal) Toelken: Very variable in leaf shape: the plain, grey-green leaves vary from long-cylindrical to short-fat. Distribution: Richtersveld mountains.
- Adromischus marianae cv. Little Spheroid: has superb and very peculiar round leaves. Distribution: Namaqualand, Northern Cape, South Africa.
Bibliography: Major references and further lectures
1) Urs Eggli “Illustrated Handbook of Succulent Plants: Crassulaceae” Springer for Science, 01/January/2003
2) Doreen Court “Succulent Flora of Southern Africa” CRC Press, 01 June 2000
Adromischus marianiae halli Aurus Mountain, Slow growing. Photo by: Flavio Agrosi
Adromischus marianiae var. hallii CR1235 Skimmelberg Photo by: Flavio Agrosi
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