Not looking good with the supposed D. ultramafica. This was from the same batch as Ron's plant. The stipules should be red. Andreas Fleischmann in the paper says all varieties of D. spatulata have papery white or transparent stipules:
Re: hybrid - I got no seed from my plant although I haven't completely dried the pods yet. The ones I sliced open have no seeds. As far as I can tell the flowers look like D. capensis flowers - the only D. aliciae characteristic I can see are maybe the glands on the scape, sepals and pedicels. The plants may not be mature enough since they were deflasked at the beginning of summer.