Monsanto, 3rd, C, 266
Flora 27(1, Bes. Beibl.): 4. 1844. (Jul-Dec 1844) (Flora
The name has been "corrected" by later authors to "Paulowilhelmia" (without the hyphen), but this is not permitted under the code.
nom. illeg. hom. Hochstetter validly published the name for a different plant and realized later (the same year) that the plant already had a valid name, and attempted to re-use the name for a species of Acanthaceae.