Not a question, just an interesting (to me, anyway) link. This "Journal American Rhododendron Society" article, "What are those Azaleas?", while about the naming of two specific azalea rhododendrons, goes into great detail about the naming authorities and rules, and how they applied over time to the naming of Rhododendron stenopetalum and Rhododendron mucronatum (Or Is It R. ripense?). JARS v53n3 - What Are Those Azaleas?