Seems like splitting hairs to me. Both agree that one needs two words to correctly identify a plant. Both agree that the first word is the genus. One claims the second word of the botanical name is the species. The other claims that the two names together are the species. In either event, both words are needed to accurately ID a specific plant. Rather like the old 'toMAYto or toMAHto' pronunciation debate, bottom line is it's the same plant. Interesting discussion, though.
