182 GLOSSARY, 
Cyme. A (frequently flat or convex) flower-cluster with the 
terminal or central flower of each of its divisions opening 
first. Many so-called corymbs and panicles are really cymes. 
Cymose. In cymes. 
Deciduous. Falling in winter, or drying early if remaining at- 
tached for a time, as applied to leaves; falling away, like 
the end-bud of linden, the flower-cluster of lilac, or the 
calyx of a crab apple. 
Decompound. Repeatedly compound. 
Decurrent. Continued down the stem in a ridge or wing, as 
applied to leaves. 
Dehiscent. Opening to discharge the seeds, as applied to fruits. 
Deliquescent. Breaking up into fine branches (American elm). 
Deltoid. Shaped like an equilateral triangle. 
Dentate. Toothed; contrasted with serrate or saw-toothed. 
Denticulate. Minutely dentate. 
Depressed. Shortened, as applied to round or ovoid fruits, etc. 
Diaphragms, Firmer plates across the pith, either at the nodes 
(grape) or at intervals between them (sweet bay, tupelo).. 
Dicotyledons. Angiosperms with two seed-leaves. 
Diffused. The same as scattered, when applied to ducts seen* in 
cross section of wood. 
Digitate. Spreading from one point, like the leaflets of a horse- 
chestnut leaf, the lobes or veins of a maple leaf, etc. When 
unqualified, it means digitately or palmately compound, if 
applied to leaves. 
Dioecious. Imperfect flowers, the sexes on’ separate individuals, 
as in poplar. 
Disarticulating. Falling away so as to leave a clean-cut scar, 
as most leaves and many fruits finally do. . 
Discoid. The same as chambered, when applied to pith. 
Disk. The same as sucker, for tendrils. 
Dissected. Divided into numerous narrow lobes. 
Divergent. The same as spreading. 
Division. One of the main groups under which plants are clas- 
sified; often called phylum. For the higher plants, the 
names of divisions end in phyta. 
