I think all of those are available from Mesa Gardens, in seed / plant. It's best if you use reputable nurseries to look cryptic cacti - your possibility of disappointment will be greatly lessened. You might contact Cactus Jordi to see if he knows where to find seed, and there's always Koehres, if you want to get them from Germany (and any species with any name, too!).

And while you're generally spelling them correctly, it's the plant's genus name which is capitalized and the species name / subspecies name in lower case. A cultivar's name is usually capitalized, like Astrophytum asterias 'Onzuka'.

Ok ill check mesa garden ... i got my aztekium hintonii from germany, and the aztekium ritteri is also from germany ... dont think same seller though ...

Which one is a cultivar though?

Neither - they're both species. Now, if some particular characteristic was desirable, and it was different than the rest, you could go through the process of registering the name, and then you'd have a cultivar (= cultivated variety, e.g. Aztekium hintonii 'Jeweled Fluff'.

Ohh i think you took that the wrong way o_o they were seperate paragraphs (sort of)
I meant which of the numbered ones was a cultivar, because you mentioned it ...
There are aztekium cultivars :D

Name me one, please. And the numbered one? I dinna ken ya.

Didnt you say one ''aztekium hintonii "jeweled fluff"?
And of the 5 numbered ones in the original message

I don't know if this should go in the trade section but - does anyone have any seeds of the said cacti?

Yes, I agree with Jeff...try Cactusjordi.

What Jeff meant was IF you had a cultivar, you would capitalize that name, (and use single quote marks), as he showed with example: Astrophytum asterias 'Onzuka'
and made up name: Aztekium hintonii 'Jeweled Fluff'

All of the plants you listed are species names...that is, no cultivars...and would be spelled as follows:

1- Astrophytum caput-medusae
2- Epithelantha ilariae
3- Geohintonia mexicana
4- Pelecyphora strobiliformis
5- Turbincarpus pseudopectinatus

Good luck!

Aww ... i thought it was real ... lost hopes and broken dreams...

I always wanted a garden irrigated by the tears of teenagers - is this my chance to get in on the ground (yuck!) floor?

Ohh ok ... ( ._.)...