I did around 70 seedling grftings in this season. The majority is caput-medusae.
The attached photo is one of grafted seedlings, Ariocarpus retusus v furfuraceus variegated.
I sowed seeds on 04/09/08 and found 6 variegated seedlings in a batch. I grafted 5 of them.
Normally grafted Ariocarpus is in flower in same season which means sowed seeds in spring and flowering in autumn but grwoing in this season is a bit slow. This summer is not hot enough.

very nice, Hana, that'll be a pretty plant when it gets bigger...