Cactus / alonsoi

It has been warming up and various cactus started flowring.

This is turbinicarpus alonsoi, sowed seeds 31/08/2006 and grafted young seedlings. It seems own-rooted plant but a short stock is attached on bottom.
Alonsoi is a small turbinicarpus but this one is around 10 cm diameter because of grafted. I keep 6 similar plants for collecting seeds.