One of them is to be found in the beginning of Galen's fifth book de Compos, medic.

As we went, if I recollect, we found on the ground many curious pods, {224} curled two or three times round, something like those of a Medic, and when they split, bright red inside, setting off prettily enough the bright blue seeds.

Crato, Julius Alexandrinus medic.

Salvianus de re medic.