I'm really liking these discussions. Are these photos appropriately timed, or what? *[img]http://www.**********.com/iB_html/non-cgi/emoticons/new/smile.gif[/img] *Both are from very distant sites in Florida.
I really believe that a discussion of flava color patterns is a discussion of purp color patterns. All these nice color forms that we see in flava may be the result of stabilized purp intragression. These two plants very commonly hybridize in the fields of Florida and North Carolina. The hybrids further cross with the species, producing offspring that more closely resemble one of the species.
Inheritance patterns suggest dominance and recessiveness. I believe the variant forms suggested by Schnell are for taxonomic purposes, not genetic. If two clones of rubricorpias are crossed the progeny vary from ornata to rubricorpia. This suggests that the rubricorpia trait is not a genetic marker. In this discussion the veining patterns are a purp characteristic and dominate over the flava ('rugelii') color patterns. How's that for speculation?