A careful reading of the rules of nomenclature has been suggested as a solution to Donnie's queries about the treatment of a seemingly hybrid opuntia. If Donnie's most basic question was "should this entity be treated as a species or as a hybrid?", then it's important to keep in mind that the answer to that question has nothing at all to do with rules of nomenclature. In fact, it is only after that question is resolved that the rules of nomenclature begin to play a role. Jim McKenney jimmckenney@jimmckenney.com Montgomery County, Maryland, USA, 39.03871º North, 77.09829º West, USDA zone 7, where Bletilla ochracea 'Chinese Butterfly' is producing stunning greenish-yellow flowers. My Virtual Maryland Garden http://www.jimmckenney.com/ BLOG! http://mcwort.blogspot.com/ Webmaster Potomac Valley Chapter, NARGS Editor PVC Bulletin http://www.pvcnargs.org/ Webmaster Potomac Lily Society http://www.potomaclilysociety.org/