It is often hard to find a consensus, and in consequence it is sometimes necessary to determine what naming convention your audience or correspondents subscribe too when discussing plants. Personally, I am very open minded about all this - I adapt to whatever naming convention my audience or correspondents prefer.
Life is too short to get exercised about plant names.
I can to establish identity. The primary references I use are those I listed in the Bibliography. I have included some Synonym lists in this Information section for consultation on those occasions when you obtain a plant with a label bearing a name that you are not familiar with, or is not listed in your references. I do adopt new nomenclature whenever there seems to be a general consensus in the cactus and succulent community or when the change makes sense to me after reviewing the pertinent literature. . Link to go to the Brazilian Cacti in Cultivation Home Page .