Anyone know anything about KP187?

[Cidermanrolls]

I have this Pterocactus, labelled as P megliolii KP187. I cannot find this field number on Ralph’s database.
I suspect that it is not megliolii, but more likely australis or fischeri. Looking at Sarnes’ online book the habitats of these do not overlap, so a natural hybrid appears unlikely. An horticultural hybrid is possible, but without knowledge of the collection number I cannot guess at when the original seed was collected. The plant was purchased in 2019 from one of the Polish eBay sellers.
Can anyone throw any light on this plant?

[Phil_SK]

It appears in a plant list I have saved from kaktusy.com

PTEROCACTUS megliolii form chocolate body , large yellow flower KP 187 Thermas La Laja 689 m , p. San Juan , Argentina

[Aiko]

I have this Pterocactus, labelled as P megliolii KP187. I cannot find this field number on Ralph’s database.

You can find the number on https://www.cl-cactus.com/default.asp
I always use both this one and the one from Ralph to find things, sometimes ones has the information. When they have it both, I compared if it is the same (not always).

[Cidermanrolls]

Thanks both. So the name and collection number go together.
But does anyone else feel that the plant doesn’t look like a megliolii? It’s nothing like any of the other megliolii plants in my collection.

[Aiko]

It looks different if I compare it with the free PDF available on http://cactus-de-patagonia.de/wp-conten ... _SAR_E.pdf
But I would not rule it out just yet.

[ralphrmartin]

For what it's worth, I'd have guessed P. fischeri if I was given it without a name.

Perhaps Norbert will give us his opinion...

[RayW]

KP 187 is only listed as a form of P. megliolii f. by Petr Kupcak so even he had his doubts.
I would say P. fischeri like Ralph.

[Mike P]

I would also go with fischeri.