pulvinata?
pillansii?

1 a clump of Thelocactus bicolor (better to plant separately) keep dry and cool till the spring. 2 very etiolated Rebutia sp. (perplexa??) Needs much sun and dry cool overwintering till the spring. ID will be possible when plant will get it's natural shape and spination (very easy and possible) and ...

They lied, you've got much better! It's Eriocactus magnificus!

Calibanus hookeri

It's a sin to live in South Fl and keep saguaro indoors IMHO

Escobaria minima/sneedii/leei ?

I say: YES! More, I care each new plant with insecticide and put it in carantine for a month.
Having some hundreds of pots it's much easier to prevent than care invasion of all collection.

Beautiful plants. That Melocactus seems to be concinnus, not azureus.

I've got 2 unrooted cuttings about 10cm for 2.78 euros both from Succseed (Mats Winberg, Sweden) last summer.
They rooted very fast and grow without problems on full sun. The stems and spines are very tiny comparing to common Ch. silv.

Hello Nino, nice to see here new experienced member, welcome!

Pilosocereus azureus
Hylocereus undatus

Give them sun as much as possible and keep in cool place without watering in winter. Outdoors when no temps below freezing.

Hello, look T bridgesii and peruvianus also.

Usually trichocerei give new growth at grownd level.
Buds develope on the top of the plant.
In some cases buds turn into vegetative sprouts.
Give it dry cool overwintering in good light and maybe next summer you'll see nice large flowers.

Tom in Tucson wrote: ↑Wed Oct 18, 2023 10:27 pm <...> The last looks more like Opuntia pilifera

Agreed, of cause pilifera