Origin and Habitat: 10 km North North East of Grünau, Namibia.

• Lithops karasmontana C168 (syn. mickbergensis) 10 km NNE of Grünau, Namibia

• Lithops karasmontana N.E.Br.
• Mesembryanthemum karasmontanum Dinter & Schwantes
• Lithops damarana (N.E.Br.) N.E.Br.
• Mesembryanthemum damaranum N.E.Br.
• Lithops karasmontana var. aiaisensis (de Boer) D.T.Cole
• Lithops erniana var. aiaisensis de Boer
• Lithops karasmontana var. aiaisensis C224 TL: 110 km W of Karasburg, Namibia
• Lithops karasmontana var. aiaisensis C409 30 km E of Ai-Ais, Namibia
• Lithops karasmontana C065 (Signalberg Form) 25 km WNW of Grünau, Namibia
• Lithops karasmontana C168 (syn. mickbergensis) 10 km NNE of Grünau, Namibia
• Lithops karasmontana C169 (syn. mickbergensis) 20 km NNE of Grünau, Namibia
• Lithops karasmontana C223 25 km NE of Grünau, Namibia
• Lithops karasmontana C225 30 km NW of Grünau, Namibia
• Lithops karasmontana C226 25 km W of Grünau, Namibia
• Lithops karasmontana C227 (syn. jacobseniana) TL: 10 km SW of Grünau, Namibia
• Lithops karasmontana C317 (syn. mickbergensis) 15 km NE of Grünau, Namibia
• Lithops karasmontana C327 (syn. mickbergensis) 15 km NNE of Grünau, Namibia
• Lithops karasmontana C328 (Signalberg Form) 25 km WNW of Grünau, Namibia
• Lithops karasmontana C408 40 km NE of Ai-Ais, Namibia
• Lithops karasmontana var. lateritia (Dinter) hort., nov. comb. ined.
• Lithops lateritia Dinter
• Lithops karasmontana var. lericheana (Dinter & Schwantes) D.T.Cole
• Lithops bella var. lericheana (Dinter & Schwantes) de Boer
• Lithops lericheana Dinter & Schwantes
• Mesembryanthemum lericheanum Dinter & Schwantes
• Lithops karasmontana var. lericheana C193 50 km NNE of Grünau, Namibia
• Lithops karasmontana var. lericheana C267 TL: 70 km N of Karasburg, Namibia
• Lithops karasmontana var. lericheana C329 70 km N of Karasburg, Namibia
• Lithops karasmontana var. lericheana C330 70 km N of Karasburg, Namibia
• Lithops karasmontana var. mickbergensis (Dinter) de Boer & Boom
• Lithops jacobseniana Schwantes
• Lithops mickbergensis Dinter
• Lithops karasmontana var. opalina (Dinter) de Boer & Boom
• Lithops karasmontana subs. opalina (Dinter) de Boer & Boom
• Lithops opalina Dinter
• Lithops karasmontana var. summitatum (Dinter) de Boer
• Lithops summitatum Dinter
• Mesembryanthemum summitatum Dinter
• Lithops karasmontana var. tischeri D.T.Cole
• Lithops fossulifera Tischer in H.Jacobsen
• Lithops karasmontana var. tischeri C182 TL: 30 km NNE of Grünau, Namibia

• Lithops karasmontana subs. bella (N.E.Br.) D.T.Cole
• Lithops bella N.E.Br.
• Mesembryanthemum bellum (N.E.Br.) Dinter in Fedde
• Lithops karasmontana subs. bella C108 TL: 5 km S of Aus, Namibia
• Lithops karasmontana subs. bella C143A 60 km NNE of Aus, Namibia
• Lithops karasmontana subs. bella C285 Near Aus, Namibia
• Lithops karasmontana subs. bella C295 115 km SSE of Aus, Namibia

• Lithops karasmontana subs. eberlanzii (Dinter & Schwantes) D.T.Cole
• Lithops bella var. eberlanzii (Dinter & Schwantes) de Boer & Boom
• Lithops eberlanzii (Dinter & Schwantes) N.E.Br.
• Mesembryanthemum eberlanzii Dinter & Schwantes
• Lithops edithae N.E.Br. non Schwantes
• Lithops erniana Tischer ex H.Jacobsen
• Lithops erniana var. witputzensis de Boer
• Lithops karasmontana subs. eberlanzii C082 35 km E of Lüderitz, Namibia
• Lithops karasmontana subs. eberlanzii C147 (syn. erniana) 40 km S of Aus, Namibia
• Lithops karasmontana subs. eberlanzii C149 (syn. erniana witputzensis) TL: 110 km SSE of Aus, Namibia
• Lithops karasmontana subs. eberlanzii C208 10 km S of Aus, Namibia
• Lithops karasmontana subs. eberlanzii C209 (syn. erniana) 10 km SSE of Aus, Namibia
• Lithops karasmontana subs. eberlanzii C369 TL: 20 km E of Lüderitz, Namibia
• Lithops karasmontana subs. eberlanzii C370 35 km 35 km E of Lüderitz, Namibia
• Lithops karasmontana subs. eberlanzii C398 45 km E of Lüderitz, Namibia
• Lithops karasmontana subs. eberlanzii C399 45 km E of Lüderitz, Namibia
• Lithops karasmontana subs. eberlanzii C400 45 km E of Lüderitz, Namibia
• Lithops karasmontana subs. eberlanzii C401 25 km SE of Lüderitz, Namibia
• Lithops karasmontana subs. eberlanzii C404 50 km E of Lüderitz, Namibia

• Lithops karasmontana var. aiaisensis cv. Orange top
• Lithops karasmontana var. aiaisensis cv. Red Blushed Selection
• Lithops karasmontana var. mickbergensis cv. 99.44% white
• Lithops karasmontana var. summitatum cv. Red Selection
• Lithops karasmontana subs. eberlanzii C370A TL: 35 km E of Lüderitz, Namibia cv. Avocado Cream D.T.Cole
• Lithops karasmontana subs. eberlanzii C402 40 km E of Lüderitz, Namibia cv. Avocado Cream
• Lithops karasmontana subs. eberlanzii cv. Purper
• Lithops karasmontana cv. Top Red

Description: The plant distinguished by the field number C168 belongs to the so called “var. mickbergensis” that has a quite uniform orange grey to pinkish-grey tops. It is variable.

Notes: Lithops are partly subterranean, with only the clear 'window' in each leaf tip exposed above soil. A type of optical system exists whereby a layer of apical tissue rich in calcium oxalate crystals acts as a filter to intense sunlight before it reaches the thin chlorophyllous layer below. They are also called mimicry plants as they show a striking similarity to their background rocks and are difficult to detect when not in flower. These are the commonly known as pebble plants or living stones; each species is associated with one particular type of rock formation and occurs nowhere else. Its soil-embedded, subterranean growth form also reduces the need for chemical defences against herbivores.

Bibliography: Major references and further lectures
1) Gert Cornelis Nel, “Lithops: Plantae Succulente, Rarissimae, in Terra Obsuratae, E Familia Aizoaceae, Ex Africa Australi” Hortors Limited, University Press, Stellenbosch. 1946
2) Linda R. Berg “Introductory Botany: Plants, People, and the Environment” Cengage Learning, 02/Mar/2007
3) Dieter J. Von Willert “Life strategies of succulents in deserts: with special reference to the Namib desert” CUP Archive, 1992
4) Chris Mcintyre “Namibia” Bradt Travel Guides, 2007
5) Neale (W. T.) & Co, Edgar Lamb “Neale's photographic reference plates, 1949: Combining cacti and other succulents” Vol. 2 W. T. Neale & Co.
6) RHS “A-Z encyclopedia of garden plants.” United Kingdom: Dorling Kindersley. 2008
7) American Horticultural Society “The American Horticultural Society encyclopedia of garden plants” Macmillan, 30/Nov/1989
8) H. E. K. Hartmann “Illustrated Handbook of Succulent Plants: Aizoaceae F-Z” Springer, 2002
9) Schwantes, Gustav. “Flowering Stones and Mid-day Flowers” London: Ernst Benn. 1957
10) S. M Walters “The European Garden Flora Flowering Plants: Casuarinaceae to Aristolochiaceae” Cambridge University Press, 1989
11) Clive Innes “Complete Handbook of Cacti and Succulents” Van Nostrand Reinhold Company, 01/Dec/1981
12) Cole, D. T. “Flowering stones” Acorn Books, Randburg. 1988
13) Smith et al. “Mesembs of the World.” Briza.Pretoria 1998
14) Leistner, O.A. (ed.), “Seed plants of southern Africa: families and genera” Strelitzia 10., National Botanical Institute, Pretoria 2000
15) Achim Hecktheuer “Mesembs, mehr als nur Lithops” Books on Demand GmbH Norderstedt. 2008
16) Cole “LITHOPS Flowering Stones” Cactus & Co. Libri. 2005
17) Yasuhiko Shimada “The Genus Lithops” Dobun Shoin. 2001
18) Rudolf Heine “Lithops - Lebende Steine” Neumann Verlag. 1986
19) Bernd Schlösser “Lithops – Lebende Steine” Praktische Anleitung für die Zimmerkultur. BussinessPoint MEDIA. 2000
20) Steven A. Hammer “Lithops – Treasures of the veld” British Cactus and Succulent Society. 1999
21) David L. Sprechman “Lithops” Associated University Presses, Inc. 1970

Cultivation and Propagation: Lithops need an open mineral, fast draining mix and the maximum amount of light you are able to give them. The basic cultivation routine is: Stop watering after flowering. Start watering after the old leaves completely dry. (Usually late March or Early April) Water freely during the growing season, soak the compost fully but allow it to dry out between waterings, no water when cold. Some growers fertilize frequently, some hardly ever. Keep them dry during the winter. Nearly all problems occur as a result of overwatering and poor ventilation especially when weather conditions are dull and cool or very humid. This plant is best for a well lit area (Bright shade to full sun).
Remarks: After flowering in the autumn and extending through winter season the plant doesn’t need watering, but they will still be growing, the new bodies will be increasing in size extracting water from the outer succulent leaves, allowing them to shrivel away. In fact the plant in this time extracts water and nutrient stored in the outer succulent leaves, allowing them to dehydrate relocating the water to the rest of the plant and to the new leaves that form during this period until the old leaves are reduced to nothing more than "thin papery shells".