GLOSSARY. 



Crustaceous. Hard and brittle. 



Cucullate. Shaped like a hood or cowl, 

 concave and somewhat arched, or 

 like an ovate leaf with edges at base 

 inrolled. 



Culm. The hollow jointed stem peculiar 

 to grasses. 



Cuneate or Cuneiform. Wedge-shaped ; 

 triangular with the angle downward . 



Cupule. A cup-shaped involucre, en- 

 closing a nut, as of an acorn. 



Cusp. A sharp rigid point. 

 Cuspidate. -Terminating in a cusp. 

 Cyathiform. Cup-shaped with a some- 

 what flaring mouth. 



Cylindrical. In the form of a cylinder. 



Cyme. A. broad and flattish inflores- 

 cence, flowering from the center 

 outward. 



Cymose. In cymes or cyme-like. 



Deciduous. Falling off after a time ; not 

 persistent. 



Declinate or Declined. Bent or curved 

 downward. 



Decompound. Repeatedly compound or 

 divided. 



Decumbent. Reclining at base, the sum- 

 mit ascending. 



Decurrent. Running down the stem, 

 applied to a leaf with blade pro- 

 longed below its insertion. 



Decussate. In pairs alternating at right 

 angles, or similarly in threes. 



Definite. Of a constant number, not ex- 

 ceeding twenty; limited or determi- 

 nate, as definite inflorescence, in 

 which a flower terminates the axis. 



Deflexed. Bent or turned down abruptly. 



Dehiscence. The regular opening of a 



capsule or anther-cell at maturity. 



Dehiscent. Opening by valves, slits, etc. 



Devoid. Having the shape of the Greek 

 letter delta; broadly triangular. 



Dendroid Tree- shaped ; branching in 

 the form of a tree. 



Dentate. Toothed ; having symmetrical 



teeth projecting straight outward. 

 Denticulate. Minutely toothed. 



Depauperate. Impoverished ; reduced 

 in size by unfavorable surroundings. 



Depressed. Somewhat flattened from 

 above. 



Dextrorse. Toward the right hand ; ap- 

 plied to spirals as seen from without. 

 It is frequently used as if the spiral 

 were seen from within, in which case 

 it indicates just the opposite direc- 

 tion. 



Diadelphous. In two sets or clusters. 

 Diandrous. Having two stamens only. 



Dichotomous. Forking regularly by 



pairs. 

 Dicotyledonous. Having an embryo with 



two cotyledons. 



Didymous. In pairs ; twin. 



Didynamous. Having four stamens dis- 

 posed in two unequal pairs. 



Diff use. Widely spreading; widely and 

 loosely branched. 



Digitate. Fingered ; applied to a com- 

 pound leaf having the leaflets all 

 diverging from the top of the petiole. 



Dimorphous. Occurring in two forms. 



Dioecious. Unisexual, the flowers of dif- 

 ferent sexes borne by separate plants. 



Dicecio - polygamous. Dioecious with 

 some perfect flowers intermingled. 



Disciform. In the shape of a disk, de- 

 pressed and circular. 



Discoid. In Composite, having disk- 

 flowers only, without ray* . 



Disk. A. dilation or development of the 

 receptacle around the base of the 

 pistil. In Compositse the inner spries 

 of tubular flowers as distinct from 

 the rays. 



Dissected. Deeply cut or divided into 

 numerous segments. 



Divaricate. Widely divergent, nearly at 



right angles. 

 Divergent. Receding from each other. 



Divided. Cleft to the base or to the mid- 

 nerve. 



Dorsal. Upon or relating to the dorsum 

 or back. 



Drupaceous. Resembling or of the nat- 

 ure of a drupe. 



