Well I think I can guess what happened to produce these 'cuttings' !

I wonder what species might be suffering post-collision?

GK1720 turns up solisia pectinata on google....?

Very enjoyable blog, thanks for sharing.

Rimacactus lauii ?

eh Dave????? Anyway Wilk, here is my engelmannii flowering for the first time this year. It is 11 years old from seed. I have quite a few echinocerei that have yet to flower which are a good size and others that flower infrequently. The E. parkeri just behind and left flowered last three years ago.....

Could well be an Ario.
Looks to be growing something like this runt in a batch of mine, it sort of blinded then started growing through?

Looks like Stenocactus vaupelianus to me?

Not a fan of Perlite either. (td) Since we all water to different extents (frequency and amount, plus top down or bottom up watering) it is not surprising we each have different mixes and preferences. I too have cut back on the cat litter, but added vermiculite (extra large grade) and now my mix is ...

The flower never opened very wide despite a sunny day

First time flowering for this Pyrrhocactus villicumensis.