Origin and Habitat: 30 km North West of Warrenton, South Africa.

• Lithops lesliei var. venteri C001 30 km NW of Warrenton, South Africa

• Lithops lesliei (N.E.Br.) N.E.Br.
• Lithops orpenii L. Bolus
• Mesembryanthemum ferrugineum Schwantes
• Mesembryanthemum lesliei N.E.Br.
• Lithops lesliei var. applanata (N.E.Br.) N.E.Br.
• Lithops lesliei subs. burchellii D.T.Cole
• Lithops lesliei subs. burchellii C302 TL: 20 km NNE of Douglas, South Africa
• Lithops lesliei subs. burchellii C308 10 km NNE of Douglas, South Africa
• Lithops lesliei C005 TL: (Warrenton Form) Near Warrenton, South Africa
• Lithops lesliei C007 15 km S of Johannesburg, South Africa
• Lithops lesliei C008 (grey Form) 70 km W of Mafikeng, South Africa
• Lithops lesliei C009 (grey Form) 70 km W of Mafikeng, South Africa
• Lithops lesliei C010 25 km SW of Lobatse, Botswana
• Lithops lesliei C014 (Kimberley Form) 15 km NW of Kimberley, South Africa
• Lithops lesliei C018 Near Stella, South Africa
• Lithops lesliei C020 (syn. luteoviridis) TL: 15 km W of Magaliesburg, South Africa
• Lithops lesliei var. luteoviridis (N.E.Br.) N.E.Br.
• Lithops lesliei C026 60 km SW of Johannesburg, South Africa
• Lithops lesliei C027 Near Bethlehem, South Africa
• Lithops lesliei C028 10 km N of Harrismith, South Africa
• Lithops lesliei C029 45 km NE of Vaalwater, South Africa
• Lithops lesliei C030 (Pietersburg Form) 30 km NW of Pietersburg, South Africa
• Lithops lesliei C031 10 km NE of Meyerton, South Africa
• Lithops lesliei C032 (Pietersburg Form) 10 km SE of Pietersburg, South Africa
• Lithops lesliei C033 45 km E of Pietersburg, South Africa
• Lithops lesliei C036 (Warrenton Form) Near Warrenton, South Africa
• Lithops lesliei C096 (Warrenton Form) 25 km N of Kimberley, South Africa
• Lithops lesliei C115 5 km NW of Vryburg, South Africa
• Lithops lesliei C138 Near Benoni, South Africa
• Lithops lesliei C139 5 km E of Benoni, South Africa
• Lithops lesliei C151 (grey Form) 25 km NW of Christiana, South Africa
• Lithops lesliei C331 15 km SSE of Pretoria, South Africa
• Lithops lesliei C341 (Kimberley Form) 20 km NW of Kimberley, South Africa
• Lithops lesliei C342 10 km NE of Pretoria, South Africa
• Lithops lesliei C343 Near Vanderbijlpark, South Africa
• Lithops lesliei C344 Near Orkney, South Africa
• Lithops lesliei C352 45 km E of Pietersburg, South Africa
• Lithops lesliei C354 (Kimberley Form) 15 km NW of Kimberley, South Africa
• Lithops lesliei C358 25 km W of Lobatse, Botswana
• Lithops lesliei C359 (grey Form) 115 km SW of Lobatse, Botswana
• Lithops lesliei C407 15 km N of Krugersdorp, South Africa
• Lithops lesliei var. hornii de Boer
• Lithops lesliei var. hornii C015 40 km SW of Kimberley, South Africa
• Lithops lesliei var. hornii C364 TL: 45 km SSW of Kimberley, South Africa
• Lithops lesliei var. maraisii de Boer
• Lithops lesliei var. mariae D.T.Cole
• Lithops lesliei var. mariae C141 TL: 10 km SW of Boshof, South Africa
• Lithops lesliei var. mariae C152 30 km NNE of Kimberley, South Africa
• Lithops lesliei var. minor de Boer
• Lithops lesliei f. minor (de Boer) B.Fearn
• Lithops lesliei var. minor C006 TL: 25 km SW of Swartruggens, South Africa
• Lithops lesliei var. rubrobrunnea de Boer
• Lithops lesliei var. rubrobrunnea C017 TL: 5 km NW of Randfontein, South Africa
• Lithops lesliei var. rubrobrunnea C204 5 km NW of Krugersdorp, South Africa
• Lithops lesliei var. venteri (Nel) de Boer & Boom
• Lithops venteri Nel
• Lithops lesliei var. venteri C001 30 km NW of Warrenton, South Africa
• Lithops lesliei var. venteri C047 TL: 30 km W of Warrenton, South Africa
• Lithops lesliei var. venteri C153 (syn. maraisii) TL: 60 km NW of Kimberley, South Africa

• Lithops lesliei var. minor C006A 25 km SW of Swartruggens, South Africa cv. Witblom D.T.Cole
• Lithops lesliei var. venteri C001 cv. Green form
• Lithops lesliei C005A TL: Near Warrenton, South Africa cv. albiflora D.T.Cole
• Lithops lesliei f. albiflora (D.T.Cole) D.T.Cole
• Lithops lesliei C036A TL: Near Warrenton, South Africa cv. albinica D.T.Cole
• Lithops lesliei f. albinica (D.T.Cole) D.T.Cole
• Lithops lesliei C036B Near Warrenton, South Africa cv. Storms Albinigold D.T.Cole
• Lithops lesliei var. hornii C015A 40 km SW of Kimberley, South Africa cv. Greenhorn D.T.Cole
• Lithops lesliei cv. Fred´s Redhead
• Lithops lesliei cv. Vivid Green

Description: Lithops leslieiSN|12964]]SN|12964]] var. venteri is one of the local form of the very variable Lithops leslieiSN|12964]]SN|12964]] that differs in a number of colour characters, but not sufficiently differentiated and often considered merely a local variant of the latter. Its faces typically displays white, grey tops with black denticulate windows, like small worms. In many cases, the windows are black and widely opened. This form was described by de Boer as Lithops leslieiSN|12964]]SN|12964]] var. maraisii. Most plants don't shows the rusty colouring of the standard Lithops leslieiSN|12964]]SN|12964]] and tend to have a certain “dusty” or “powdery” appearance and looks looks like limestone with weathered surface. It is among the easiest species to grow, and looks like a flowering brain, with a big, yellow umbrella-shaped daisy flower taking its nourishment from the frontal lobes.
Habit: Growths up to many in a clump (mostly 2 to 5), often more numerous in cultivation.
Stem: Almost stemless.
Roots: It has soft rootstocks.
Bodies (paired leaves): quite large 2-4 cm wide. Each plant consists of a pair of extremely thick and equally or slightly unequally sized leaves fused together and separated by a shallow fissure (2-5 mm) with conjuncted lobes. Top surface slightly convex, slightly rough to the touch or smooth; large transparent window, coloured light brownish red, and in which numerous small islands occur, and in these islands dark-green miniature openings or windows, or the window is irregular in shape, light-green, and sometimes with a light-grey covering. In this covering a number of small round openings, whereby the transparent window becomes visible. In the irregular window a large number of large, grey-coloured islands of irregular shape. In these islands here and there a small number of round openings. Outer margin denticulate or consisting of a large number of irregularly-shaped laciniae connected to the is lands. Inner margin irregular. Both margins coloured grey.
Flowers: A single medium to very large yellow daisy-like flower emerges from the fissure and is as large as the pair of fleshy leaves below. About 3-5 cm wide, diurnal.
Blooming season: From mid-summer through fall.
Capsule: Mostly 5-locular.
Seeds: Light to dark brown, very fine.

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 refences and further lectures
1) Heidrun E. K. Hartmann “Aizoaceae F – Z” Springer 2002
2) Achim Hecktheuer “Mesembs, mehr als nur Lithops” Books on Demand GmbH Norderstedt. 2008
3) Desmond T. Cole & Naureen A. Cole, Uwe Beyer, Yves Delange “Les Lithops” SUCCULENTES Spécial 2008 AIAPS (now Terra seca). 2008
4) Desmond T. Cole & Naureen A. Cole “LITHOPS Flowering Stones” Cactus & Co. Libri. 2005
5) Yasuhiko Shimada “The Genus Lithops” Dobun Shoin. 2001
6) Rudolf Heine “Lithops - Lebende Steine” Neumann Verlag. 1986
7) Bernd Schlösser “Lithops – Lebende Steine” Praktische Anleitung für die Zimmerkultur. BussinessPoint MEDIA. 2000
8) Steven A. Hammer “Lithops – Treasures of the veld” British Cactus and Succulent Society. 1999
9) Desmond T. Cole “Lithops – Flowering Stones” Acorn Books 1988
10) Rudolf Heine “Lithops – lebende Steine” Neumann Verlag. 1986
11) David L. Sprechman “Lithops” Associated University Presses, Inc. 1970
12) Gert Cornelius Nel “Lithops” Hortors Limited, South Africa 1946
13) Edgar Lamb "The illustrated reference on cacti and other succulents" Blandford Press. 1978
14) Christopher Brickell, Royal Horticultural Society "RHS A-Z Encyclopedia of Garden Plants: K-Z., Volume 2" Kindersley, 2008
15) G. C . Nel “Lithops: Plantae succulantae, rarissimae, in terra obscuratae, e famailia Aizoaceae, ex Africa australi” Hortors Limited, Cape Town, South Africa 1946
16) Heidrun E. K. Hartmann "Illustrated Handbook of Succulent Plants: Aizoaceae F-Z" Springer, 2002
17) Steven A. Hammer "Lithops: Joyaux du veld" Editions Quae, 25/nov/2010

Cultivation and Propagation: 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).
Notes: 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".