Nomenclature question about Namaqua

[Jangaudi]

I'm not that familiar with the nomenclature of plant identification, and I know it does change over time, so I was wondering if a plant with the epithet namaquanum or namaquensis is one and the same species. I get this much that they grow in the Namaqua region, but that is as far as I can figure it out
Long story short ; I ordered seeds of a species ending with the namaquensis epithet, but am unable to find any other information about it, though my search keeps jumping to namaquanum.

[bbarv]

What species are you talking about?

[Jangaudi]

Eriospermum namaquensis / namaquanum

[eduart]

Always try IPNI

Eriospermum namaquanum Marloth ex P.L.Perry, J. S. African Bot. 50(4): 521 (1984) (1984).

[Jangaudi]

Yes, I did notice some entries for namaquanum, but nothing for namaquensis, except for the seed shop itself. So can I assume this is an error / archaic epithet and thus the same species ?

[Aiko]

An interesting question, I must say. Don't know the answer myself.
I personally always regard these differences as spelling / writing errors, so I would regard them as synonyms.