GLOSSARY. 185 
Glabrescent. Becoming glabrous. 
Glabrous. Not hairy. 
Gland. A secreting organ: as here used, secreting nectar 
(petiole of cherry), aromatic oil (sweetbrier foliage), or 
balsam (cottonwood and horse-chestnut buds); sometimes 
‘containing resin or essential oils, either on the surface 
(bayberry) or within the substance of a leaf, etc. (orange). 
Glaucous. With a white or bluish bloom, like a plum. 
Globose. Shaped like a globe: spherical. 
Glutinous. Sticky, with resin or gum. 
Granular. Minutely or microscopically roughened. 
Gummy. Much the same as resinous, as applied to buds. 
Gymnosperms. Naked-seeded flowering plants, like cycads and 
conifers: contrasted with Angiosperms. 
Habit. General appearance, or mode of growth. 
Halberd-shaped. The same as hastate. 
Hard-wood. Technically, the lumber derived from Angiosperms. 
Hastate. Elongated, with two spreading lobes at base 
(leaves of red sorrel, bracts of blue beech). 
Head. A round or flat cluster of sessile flowers. 
Herbaceous. Not woody. 
Homogeneous. Continuous and without firmer cross-plates or 
diaphragms, as applied to pith. 
Horizontal. With the broad faces parallel to the earth, as 
applied to the foliage sprays. 
Horrid. Used in the classic sense. 
Hybrid. Offspring resulting from the egg of one species being 
fertilized by the sperm of another: less properly, the result 
of crossing one variety with another. Names of hybrids 
are prefixed by X; or a compound name is formed by com- 
bination of the specific names of the parents, separated 
by X. 
Hypanthium, A hollow fruiting receptacle (rose, fig). 
Hypogynous. Arising from the receptacle below the pistil, as 
applied to calyx, corolla or stamens. 
Imperfect. Lacking stamens or pistil, as applied to flowers. 
Incised. Toothed or lobed, with acute sinuses as if cut. 
