CANCELLATE, latticed, composed of veins alone. CANESCENT, hoary. CAPILLARY, filiform, thread-like, or hair-like. CAPITATE, pin-like, having a rounded summit, as some hairs. CAPITULUM, head of flowers in _Compositæ_. CAPREOLATE, having tendrils. CAPSULE, a dry seed-vessel, opening by valves, teeth, pores, or a lid. CARINA, keel, the two partially united lower petals of papilionaceous flowers. CARINATE, keel-shaped. CARPEL, the leaf which contains the ovules. Several carpels may enter into the composition of one pistil. CARPOLOGY, the study of fruits. CARPOPHORE, a stalk bearing the pistil, and raising it above the whorl of the stamens, as in _Lychnis_ and _Capparis_. CARUNCLE, a fleshy or thickened appendage of the raphe of the seed. CARYOPSIS, the monospermal seed-vessel of a grass, the pericarp being adherent with the seed. CATKIN, same as Amentum. CAUDATE, having a tail or feathery appendage. CAUDEX, the stem of palms and of tree ferns. CAUDICLE, the process supporting a pollen mass in orchids. CAULESCENT, having an evident stem. CAULICLE, the rudimentary axis of the embryo. CAULINE, produced on the stem. CAUSTICITY, having a burning quality. CELLULAR, composed of cells. CELLULOSE, the chemical substance of which the cell wall is composed. CENTIMETRE, a French measure, equal to 0.3937079 British inch. CENTRIFUGAL, applied to that kind of inflorescence in which the central flower opens first. CENTRIPETAL, applied to that kind of inflorescence in which the flowers at the circumference or base open first. CERAMIDIUM, an ovate conceptacle, having a terminal opening, and with a tuft of spores arising from the base; seen in Algæ. CEREAL, a general term applied to wheat, oats, barley, and rye. CHALAZA, the place where the nourishing vessels enter the nucleus of the ovule. CHLOROPHYLL, the green coloring matter of leaves. CHORISIS, separation of a lamina from one part of an organ, so as to form a scale or a doubling of the organ; it may be either transverse or collateral. CHROMULE, the coloring matter of the cells of flowers; also of the lower _Algæ_. CILIA (_cilium_), short, stiff hairs fringing the margin of a leaf; also the delicate vibratile hairs of zoospores. CILIATO-DENTATE, toothed and fringed with hairs. CIRCINATE, rolled up like a crosier, as the young fronds of ferns. CIRCUMSCISSILE, cut round in a circular manner, such as seed-vessels opening by a lid. CIRCUMSCRIPTION, the periphery or margin of a leaf. CIRRHUS, a modified leaf in the form of a tendril. CLATHRATE, latticed, like a grating. CLAVATE, club-shaped, becoming gradually thicker toward the top. CLAW, the narrow base of some petals, corresponding with the petiole or leaves. CLEFT, divided to about the middle. CLOVES, applied to young bulbs, as in the onion. CLYPEATE, having the shape of a buckler.