INDEX AND GLOSSARY 



263 



Corm. The enlarged fleshy base of a stem, 

 bulblike, but solid. 60. 



Corolla. The inner perianth, of distinct or 

 connate petals. 100, 110. 



Coroniform. Shaped like a crown. 



Corrugate. Wrinkled or in folds. 



Corticium, 195. 



Corymb. A flat-topped or convex open flower 

 cluster, in the stricter use of ihe word, 

 equivalent to a contracted raceme, and 

 progressing in its flowering from the 

 margin inward. 140. 



Corymbose. In corymbs, or corymblike. 



Costate. Ribbed ; having one or more longi- 

 tudinal ribs or nerves. 



Cotyledons, The foliar jiortion or first leaves 

 (one, two, or more) of the embryo as found 

 in the seed. 17. 



Cotyledons, sleep of, 75. 



Crateriform. Having the form of a shallow 

 bowl. 



Creepers, 57. 



Crenate. Dentate with the teeth much 

 rounded. 95. 



Crenulate. Finely crenate. 



Cristate. Bearing an elevated appendage re- 

 sembling a crest. 



Cross-fertihzation, IIS; agencies for, 120. 



Crossing, effect of, 1^7. 



Crown. An inner appendage to a petal, or to 

 the throat of a coroUa. 13'2. 



Crustaceoas. Of hard and brittle texture. 



Cryptogams, 13; laboratory studies, 157; 

 (ch. xvi.), 16S; relationship to phanero- 

 gams, 211. 



Cucullate. Hooded or hood-shaped ; cowled. 



Culm. The peculiar stem of sedges and 

 grasses. 



Cuneate. Wedge-shaped; tnangular, with 

 the acute angle downward. 93. 



Cupules, 200. 



Cuspidate, Tipped with a cusp, or sharp 

 and rigid point. 94. 



Cuticle, 227. 



Outleria, 178. 



Cyme. A usually broad and flattish deter- 

 minate inflorescence, i.e. with its central 

 or terminal flowers blooming earliest. 142. 



Cymose. Bearing cymes, or cymelike. 



Cytoplasm. General mass of the protoplasmic 

 cell, aside from the nucleus. 214. 



Deciduous. IfTot persistent ; not evergreen. 



Decompound. More than once compound 

 or divided. 98. 



Decumbent. "Reclining, but with the sum- 

 mit ascending. 



Decurrent (leaf). Extending down the stem 

 below the insertion. 



Decussate. Alternating in pairs at right 

 angles. 91. 



Definite. Of a constant number, not exceed- 

 ing twenty. 



Deflexed. Bent or turned abruptly down 

 ward. 



Dehiscent, Dehiscence, 151. Opening regu- 

 larly by valves, slits, etc., as a capsule or 



anther. 151. 

 Deliquescent trunks, 33. 

 Deltoid. Shaped Hke the Greek letter A. 

 Dentate. 1'oothed, usuallj' with the teeth 



directed outward. 82, 9-i. 

 Denticulate. Minutely dentate. 

 Depressed. Somewhat flattened from above. 

 Determinate (inflorescence), 139, 142. 

 Diadelphous (stamens). Combined in two 



sets. 135. 

 Diandrous. Having two stamens. 135. 

 Dicarpellary. Composed of two carpels. 

 Dichotomous. Forking regularly by pairs. 

 Dicotyledonous. Having two cotyledons. 

 Dicotyledons, 17 ; flbrovascular bundles of, 



222; plan of flowei;, 110; stem structure, 



4T ; stem, anatomy of, 223. 

 Didymous. Twin ; found in pairs. 

 Didynamous (stamens). In two pairs of 



unequal length. 135. 

 Diffuse. Widely or loosely spreading. 

 Digestion, 235; (Exp.), 250. 

 Digitate. Compound, with the members 



borne in a whorl at the apex of the sup- 



port. 

 Dimerous (flower). Having all the parts in 



twos. 

 Dimorphous. Occurring in two forms. 123. 

 Dicecious. Unisexual, with the two kinds 



of flowers on separate plants. 119, 129. 

 Discoid. Resembling a disk. Discoid head, 



in Compositie, one without ray flowers. 

 Disk. A development of the receptacle at or 



around the base of the pistil. In Com- 



positie, the tubular flowers of the head as 



distinct from the ray. 

 Dissected. Cut or divided into numerous 



segments. 79. 

 Dissemination, 145, 153; agents of, 153; by 



animals, 155; by ejection, 156; by water, 



155; by wind, 153. 

 Dissepiment. A partition in an ovary or 



fruit. 

 Distichous. In two vertical ranks. 

 Distinct. Separate; not united ; evident. 

 Divaricate. Widely divergent. 

 Divided. Lobed to the base. 96. 

 Dodder, 41. 



Dormant condition, seeds, 19. 

 Dorsal. Upon or relating to the back or 



outer surface of an organ. 

 Drawing, 242. 

 Drupaceous. Resembling or of the nature 



of a drupe. 

 Drupe. A fleshy or pulpy fruit with the in- 

 ner portion of the pericarp (1-celled and 



1-seeded, or sometimes several-cefled) hard 



or stony. 149. 

 Drupelet. A diminutive drupe, 



Echinate. Beset with prickles. 

 Ecology. That part of botany which treats 

 of plants in their relations to their eur- 



