BEDEGUAR, a hairy excrescence on the branches and leaves of roses, caused by an attack of a cynips. BIDENTATE, having two tooth-like processes. BIFARIOUS, in two rows, one on each side of an axis. BIFID, two-cleft, cut down to near the middle into two parts. BIFORINE, a raphidian cell with an opening at each end. BILABIATE, having two lips. BILOBED, divided into two lobes. BILOCULAR, having two cells. BINATE, applied to a leaf composed of two leaflets at the extremity of a petiole. BIPARTITE, cut down to near the base into two parts. BIPINNATE, a compound leaf, divided twice in a pinnate manner. BIPINNATIFID, a simple leaf, with lateral divisions extending to near the middle, and which are also similarly divided. BIPINNATIPARTITE, differing from bipinnatifid in the divisions extending to near the midrib. BIPLICATE, doubly folded in a transverse manner. BISERRATE, when the serratures are themselves serrate. BITERNATE, a compound leaf divided into three, and each division again divided into three. BLADE, the lamina or broad part of a leaf, as distinguished from the petiole or stalk. BLANCHING. See _Etiolation_. BLETTING, a peculiar change in an austere fruit, by which, after being pulled, it becomes soft and edible, as in the medlar. BLISTERED, applied to raised spots in leaves. BOLE, the trunk of a tree. BOTHRENCHYMA, dotted or pitted vessels. BRACT, a leaf more or less changed in form, from which a flower or flowers proceed; flowers having bracts are called _bracteated_. BRACTEOLE, a small bract at the base of a separate flower in a multifloral inflorescence. BRANCHLETS, little branches. BRYOLOGY, the study of mosses; same as muscology. BULB, an underground stem covered with scales. BULBIL, or BULBLET, separate buds in the axil of leaves, as in some lilies. BYSSOID, very slender, like a cobweb. C CADUCOUS, falling off very early, as the calyx of a poppy. CÆSIOUS, gray. CÆSPITOSE, growing in tufts. CALCAR, a spur, projecting hollow or solid process from the base of an organ, as in the flower of Larkspur or Snap-dragon; such flowers are called _calcarate_, or spurred. CALCEOLATE, slipper-like, applied to the hollow petals of some orchids; also to the corolla of _Calceolaria_. CALLOSITY, or CALLOUS, a leathery or hardened thickening on a limited portion of an organ. CALYCIFLORÆ, a sub-class of polypetalous Exogens, having the stamens attached to the calyx. CALYCINE, belonging to the calyx. CALYPTRATE, in form, resembling an extinguisher. CALYX, the outer envelope of a flower. CAMBIUM, the young active cells between the bark and the young wood. CAMPANULATE, shaped like a bell, as the flower of harebell. CAMPYLOTROPAL, a curved ovule, with the hilum, micropyle, and chalaza near each other. CANALICULATE, channeled, having a longitudinal groove or furrow.