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Not Rebutia minuscula ?

Verfasst: Sa Jun 17, 2023 2:06 pm
von BubikolRamios
http://agrozoo.net/jsp/Galery_one_image ... eaa4fbe2a5 ?

As far as I can see the spines are less dense as google images of R.m.
Besides, a bit seen on image, more on another pot I seen, 'body' is flattened down, never round, and even more never columnar.

Re: Not Rebutia minuscula ?

Verfasst: Sa Jun 17, 2023 2:39 pm
von Kraichgauer
Density of spines in Cactaceae is an irrelevant feature and depending on the place the individual is growing. Even if you move a single individual to a new place, his size, form and spine features will change.
Also, "googling" Cactaceae is an invitation for disaster, with thousands of synonyms and unnecessary names coined by cactus hobbyists (actually, WorldPlants now lists 1.751 recognized species vs. 18.427 synonyms, and much worse in Rebutia s. l.). I would estimate that a majority of pictures floating around is wrongly labeled.
In addition, Cactaceae nomenclature is rapidly changing because (finally!) molecular genetics are here and leave no stone in Cactaceae unturned.

Michael