Ciferri, Raffaele

Cleland, J. Burton

Clinton, George P.

Clinton, George W.

Clusius, Carolus

Coker, William Chambers

Colwell, Rita R.

Cooke, Mordecai Cubitt

Corda, August Karl Joseph

Corner, E. J. H.

Costantin, Julien-Noel

Cotton, A. D.