I’ve discovered that Marina’s article, “How Dangerous are Euphorbias?“, is quoted and linked around the Internet. Including at Wikipedia. I had already put it back online here at The Amateurs’ Digest Archive, but I’ve just added the question and answer exchange at the end, along with pictures. Hope you enjoy it.
Update 19 June 2023. Marina’s article, “How dangerous are euphorbias?” really was valuable. It received a compliment from Rudolf S. in the USA (found at TAD in the Wayback). Rudolf said, “Thanks for the very useful compilation, which is especially appreciated for its detail as I am a professional botanist.”