I lost several luethyis last winter because of red spider problem. I tried to regain numbers and grafted pups spent around one month.
I completed the grafting this morning.
I used Myrtillocactus geometrizans as root stocks. Since luethyi had long soft tubercles, I used 2 sets of special grafting devices.
One grafting process was necessary 48 hours and I spent 24 days to complete 24 pups graftings.
Geometrizans stock will meet with luethyi scion quite well and I expect a good growing and early flowering.
Stocks are in 50 mm square tubes at moment but I will repot to 90 mm olieve-pots soon.

Damn you must have a lot of stocks growing hana - how many would you think you have at the moment, ready to go?

totally awesome. Agree with Gilligan, you must have a humungous collection.

vicki and gilligan
Stocks of geometrizanse are not so many because they have to start by cuttings.
I have not counted but it may be around 50 stocks remained.
I also have another seedling stocks aroung 100.
Hanazono

Again - WOW... very humbling to see such quantities of (a) healthy grafted plants and (b) such a hard to grow species.
And here I am just trying to grow the seeds never mind dare and graft one in case I lose it.

Well done Hana.

You really are a god.... That's amazing. alot of time and effort , I really hope it all pays off for you. You really are an amazing cactophile. I admire luethyis they are such an unusual mamm.

Anyway thanks a bunch for breaking my face and smashing my heart. I look forward to having a beating next post you make.

*Slumps back to his not so grand collection......and dreams*
-A

Really nice. I've never seen so many I also lost one to red mites late last summer, they seem to like this sp.

Cactusboy

I slice the pup off when I take cuttings from a mother plant.
Other comments on the grafting luethyi will be:
Removing all tubercles around 5mm above from the cutting face of the scion.
Put a piece of cotton on the top of the scion, it will be able to give even force on the top of the scion.

Since the tubercles of luethyi are soft and long, above two process will give a good result.
Hanazono

Thanks Hanazono for your advice, very very helpful.
I wasn't too sure how to approach the graft with all the soft tubercles and thought that I may damage it using my usual attachment method.

Do you dust the wound of the mother plant with sulfur powder or just leave it to dry naturally?

cactusboy
I just leave the mother plant to day naturally.
Adelaide is a very dry place.
Hanazono

thats my graft luethyi from single mammilla

and here is the result now :

Great jobs friends
Good luck

zmei4o
I have confirmed the possiblity of tubercle grafting by using 4 Mammillaria species including luethyi.
Since I used a different root stock, the appearence was bit different from you case.
I have not get a successful result of Ariocarpus tubercle grafting yet.
Hanazono