I never knew this existed, an Illustrated Fungi from Yuggoth in 52 pages, from 1983. Done in a pleasing and vaguely Moebius-a-like style, and I’d assume presented as facing illustrations for each poem.

It’s not online, so far as I can find. S.T. Joshi gave it a review in 1984. And there were 250 copies produced, according to other notices of the time.