File:Dissected Lithops 0161 (3138697450).jpg

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The Lithops lobes derived from ordinary plant leaves: The top side transmits light and is hard coated for protection, the bottom side has microscopic apertures (stomata) for gas exchange. This is the same with Lithops, besides the "leaves" have got a huge water storage layer within. It is fully transparent, and photosynthesis is performed by the green cells near the sidewalls, which are the bottom side of the "leaf". Lithops are CAM-Plants, that means that they perform photosynthesis and gas exchange differently scheduled, to keep the stomata closed at daytime to reduce transpiration. The Lithops top side is called window due to its explicit transparency. Perfect: A red tinted window! On the one hand it transmits red light for photosynthesis and on the other it prevents the plant from looking green, so plant-eating animals won't find it.

Inside the plant body, there is a next pair of lobes waiting to take over next year. The outer lobes will nourish the new lobes during their growth and are sacrificed in spring. So Lithops never afford more than two lobes, except when splitting up into two plants. When watered all time, they try to behave like "normal" plants and build up one pair of leaves after the other. This quickly causes heavy ruptures because their anatomy does not allow for that.
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Dissected Lithops 0161

Author yellowcloud from Germany

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This image, originally posted to Flickr, was reviewed on 3 March 2013 by the administrator or reviewer File Upload Bot (Magnus Manske), who confirmed that it was available on Flickr under the stated license on that date.

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current17:18, 3 March 2013Thumbnail for version as of 17:18, 3 March 20132,048 × 1,536 (1.14 MB)File Upload Bot (Magnus Manske) (talk | contribs)Transferred from Flickr by User:Jacopo Werther

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