Hello all,
I have been reading this thread with interest and particularly interested in LariAnn's comments, to the point of sharing some information with you all from my observations growing this plant.
Living here in Australia, I see constant reference to this cultivar as being 'Yucatan Princess' which I am led to believe to be totally incorrect. Something I have observed with the A. mac 'Plumbea Nigra' or what it may correctly be called on my specimens is the light coloured area adjacent the petiole junction, which then returns to a purple colour through to the drip tips. I also note there is a very fine black line all the way around the outer edge of the leaf. Could I please have a positive ID on this please? Kind regards from downunder, Bruce