Jean, I understand your doubts...but I compared this photo with others in the net and eventually I think this flower is within the variation of the species. Even the staminode looks gratrix like...but to say it frankly - I'm no taxonomist.Not sure for gratrix.; mine has much more greenish coloration on the dorsal, and the petals are clearly divided conc. color: the upper half more brownish, the lower more greenish!? Jean
Correct. This classification was recently reinforced (again) with Koopowitz's new checklist in OD.Can you show us the whole plant? If the leaves are wide, it could be the true gratrixianum. Most plants with that name are now considered to be affine.
Yup, it looks very similar indeed and mine also came from O&M, but mine was labeled as "villsoum var. gratrixianum", which, as far as I've understood it, was the old name for gratrixianum.Mutant posted one back in Aug that looks very similar
Carsten said "Looks like var. daoense to me. Very nice, indeed."
So what does a daoense variety look like?
I thought the P affine debate was over?Correct. This classification was recently reinforced (again) with Koopowitz's new checklist in OD.
I don't think this is totally out of range for flowers labeled as gratrixianum that should be the Vietnamese affine.
But typically there is a pretty distinct stripe through the middle of the petals, and the upper half of the petals are darker than the lower half.
Maybe the Laotian "true" gratrixianum lack that striping (as well as having bigger/wider leaves).
The dorsal doesn't look like the bulk of boxalli that have been floating around.
As more of SE Asia gets explored/exploited we tend to see that every new valley and ridge has its own subtle variety of villosum/gratrixianum/insigne/affine. I have a power point presentation by Averyanov that would put all these concepts into a single huge very smeary species concept.