It's an interesting article and if the author is correct, it could necessitate bigger changes in our database than the Perilla Magilla entry. The author states:
"'Magilla Perilla' and 'Magilla Vanilla' are the same species as the commonly grown coleus, just different cultivars. Their scientific name is Solenostemon scutellarioides."
I would question his second sentence. Our database lists Solenostemon scutellarioides as a synonym for Plectranthus scutellarioides, and this agrees with the information in The Plant List and GRIN.
http://www.theplantlist.org/tp...
http://www.ars-grin.gov/cgi-bi...
ITIS, on the other hand, lists Solenostemon scutellarioides as a synonym for Plectranthus amboinicus.
http://www.catalogueoflife.org...
There's a conflict here, to be sure, but the main thing is that I don't find any sources listing Solenostemon scutellarioides as an accepted name. In view of this apparent mistake on the part of the article's author, I'm not certain that his other information is credible.
(Edited to correct a couple of pronouns after realizing that the author is a man.)