I find it very interesting to see how big the olivacea have become. With the summer sun they now have deepened their colors and their forms can be seen more clearly.
Some of them are evenly round on the top and others have a distinct crest-like line on the surface.
Also I would say that some of them definitely share some genes with olivacea var. nebrownii. Like the one in the picture above on the left, and the one in the last picture.
Lithops olivacea on July 23, 2010