Cactus / castanea seedlings

I repotted 15 seedlings of Frilea castanea cv Ogata Shidou in this morning.
I like this species and sow seeds every year but not so many each time.
The repotted seedlings are 2 years old sown seeds on 08/10/2011.
Each seedling is in a 5 cm square tube.

Cactus / offsets

Several offsets posted on 9th July have had flowering buds.
I can not see any aerial roots but it is the time for the potting.
The maxi um temperature of yesterday was 24 C'.

Cactus / valdezianus

There are 2 flower variations on Turbinicarpus valdezianus.
The photo is a T. valdezianus v albiflorus, was in flower yesterday afternoon.
I sowed seeds on 21/01/2007.
All of seedlings are now flowering size.

Cactus / sanchez-mejoradae

I grafted 6 offsets of Mammillaria sanchez-majoradae in 2007.
Since scions have grown to too large, stocks have become weaker.
Only one of them has still kept good condition, attached in here.

Cactus / Turbinicarpus species

I assumed this cactus was Tubinicarpus alonsoi but it seemed not.
I collected seeds from my plant and sowed. I thought I collected alonsoi only for Turbinicarpus.
The flower color of alonsoi is crimson but this is not.
The plant is very small, 4 cm diameter.