Thimble Cactus

"Mammillaria gracilis v. fragilis is a charming, miniature Mammillaria native to Central Mexico. Tiny globular bodies are densely covered with interlaced white radial spines, giving the impression of white “thimbles”. Clusters prolifically to form large mats."

Just a quick photo (but I do really like this cactus) before heading to the airport.
Off to CA late this afternoon with a return to AZ late tomorrow afternoon.
I am looking forward to seeing the team at a sister company.
I'm also looking forward to the cooler weather even if it's only for a day. :)