crystallion
Could not find crystalli in Logeion dictionaries.
crystalli Noun: neuter genitive singular of crystallion
crystallĭon, ii, n., = κρυστάλλιον,
- a plant, also called psyllion, Plin. 25, 11, 90, § 140 (Jan. crysallion).
crystallion, iī, n. (κρυστάλλιον), Flöhkraut, Plin. 25, 140 Sill. (Jan u. Detl. chrysallion).
crystallĭŏn, ĭī, n. (κρυστάλλιον), Plin. 25, 140, c. psyllion.