All of them pictured here I had left in VT except the Rebutia
, which I think I bought during the winter down in NY. PTCG:
It's possible they're buds, but last year the flowers I had were produced at the very ends of the stems, which I think is normal for this sp. You can't see it clearly in the first photo, but the second one shows the tip of a stem with a bud which broke off when I dropped it.