community, a mixture of the individuals of two or more species, a group of families.

comospore (κόμη, hair) a plant with hairy or silky disseminules.

competition, the relation between plants occupying the same area, and dependent upon the same supply of physical factors.

consocies, that subdivision of a formation controlled by a facies.

copious, used of species in which the individuals are arranged closely but uniformly.

coryphi´um (κορυφή, peak), an alpine meadow formation; coryphad, an alpine meadow plant.

creatospore (κρέας, ατος, meat), a plant with nut fruits.

cremni´um (κρημνός, crag, cliff), a cliff formation; cremnad, a cliff plant.

creni´um (κρήνη, spring), a spring formation; crenad, a spring plant.

crymi´um (κρυμός, frost), a polar barren formation; crymad, a polar plant; crymophytic, pertaining to polar plants.