hybridization among NA pieris?

Hey Folks,

I seem to remember someone mentioning the possibility of hybridization 
between P. rapae (cabbage whites)
and P. virginiensis  (West Virginia White) in the southeastern US.  
Excuse the lapse in memory but a labmate
of mine is interested in this group.

If any of you know of possible cases of hybridization please let me 
know off the list.

Thanks and Happy Holidays.

-Sean



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