ceras, = a horn;
aner, andrus, = man, of a man.
aner, andros, = male stamen.
(refers to the two projecting, horn-like rostellum arms that bear the pollinaria in C. atrata) (LS, BL, Co)
For William Henry Harvey (1811-1866);**
-anus, = belonging to, connected with, pertaining to, used to form adjectives from nouns, particularly from geographical and personal names. (Ch, BL)