I'm sitting on my garage roof as I type this

Need a closer shot to be sure. Might be Mammillaria flavicentra. Or M. columbiana.

Not trollii, but Oreocereus celsianus. Probably

You're growing a cricket bat!

Horns with an areole between?
[img]http://nartowicz.users.btopenworld.com/ ... ricus4.jpg[/img]

One at the bottom possibly Rebutia muscula. Definitely large enough to flower. Is that an offset?

Cactus & Co website doesn't have any details of No2 journal for this year, yet.

So I at least have some excuse for not hearing about the new name

New species? You can tell I don't get the right journals, I find out about this from eBay! Which species do you think this will get lumped into?

I'm with you, Bill. The cost of the greenhouse almost becomes irrelevant compared to the cost of the right foundation, running utilities to it, venting, staging, etc, etc .... and don't even start with heating!

Looks like Gymnocalycium denudatum.