Cyathophyllum dianthus, [261].
------------- turbinatum, [261].
Cycadeæ, [150].
------- fossil stems of, [156].
Cycadites megalophyllus, [157].
--------- microphyllus, [158].
Cycas revoluta (recent), [150].
Cyclas, [416].
Cyclobatis oligodactylus, [579].