Glomerate. Arranged in compact clusters.
Glomerule. a compact and somewhat capitate cluster of flowers; a small and densely compacted cyme.
Glumaceous. Resembling the glumes of grasses.
Glume. The term applied to the chaff-like and usually distichous bracts of the inflorescence of grasses and allied plants.
Glutinous. Covered with a sticky secretion.
Grain. The fruit of grasses; a caryopsis.
Granular, Granulose. Composed of small grains or rough with small grains.
Gymnosperms. Plants in which the ovule is not enclosed in an ovary, as in the Coniferæ.
Gynæceum. The pistil or pistils of a flower; the female portion of a flower.
Gynandrous. Having the stamens adnate to the pistil, as in Orchids.
Gynophore. The stalk or support of the ovary.
Gyrate. Curved into a circle or spiral; circinate.
Habit. The general appearance of a plant.
Habitat. (1.) The kind of locality in which a plant grows. (2.) The geographical distribution or range of a plant.
Hair. A slender outgrowth of the epidermis, either composed of a single elongated cell or of a row of cells.
Hairy. More or less covered with hairs.
Halophyte. A plant growing within the influence of salt water.
Hastate. Halbert-shaped; applied to an arrow-shaped leaf with the basal lobes pointing straight outwards.
Helicoid. Coiled into a circle like the whorls of a small shell.
Herb. A plant that has no persistent woody stem.
Herbaceous. Having the character of a herb; not woody or shrubby.
Hermaphrodite. Having stamens and pistils in the same flower.
Heterogamous. Bearing two kinds of flowers, as in the Compositæ, where the florets of the disc may be hermaphrodite and those of the ray unisexual or neuter.
Heterogeneous. Dissimilar; not uniform in kind.
Heteromorphous. Of two or more different forms.
Heterophyllous. Having leaves of different forms.
Heterosporous. Having spores of more than one kind.
Hilum. The scar or place of attachment of the seed.
Hirsute. Hairy with long tolerably distinct hairs.
Hispid. Beset with rough hairs or bristles.
Hispidulous. Minutely hispid. Hoary. Greyish-white with a fine pubescence.
Homogamous. Having only one kind of flowers; applied to the flower-heads of Compositæ when the florets are all alike.
Homogeneous. Alike, uniform in kind; the opposite of "heterogeneous."
Hyaline. Translucent; colourless.
Hybrid. A cross between two species, obtained when the pollen of one species is placed upon the stigma of the other.
Hypocrateriform. Applied to a corolla which has a long and slender tube and flat spreading limb, like the Primrose.
Imbricate, Imbricated. Overlapping, as the tiles on a roof; or, in æstivation, overlapping at the edge only.
Immarginate. Not margined or bordered.
Imparipinnate. Pinnate with an odd terminal leaflet.
Incised. Having the margin sharply and irregularly cut.
Included. Not projecting beyond the surrounding organ; the opposite of "exserted."
