GLOSSARY. 
107 
Hispidulous. Minutely hispid. 
Hoary. Grayish white, with a fine, close pubescence. 
Homogainous. Bearing but one kind of flowers. 
Hooded. Shaped like a hood or cowl. 
Hyaline. Transparent or translucent. 
Hybrid. A cross-breed of two species. 
Hypogynous. Situated on the receptacle beneath the ovary and free from 
it and from the calyx; having the petals and stamens so sit- 
uated. 
Imbricate. Overlapping like the shingles on a roof. 
Immersed. Growing wholly under water. 
Incised. Cut sharply and irregularly, more or less deeply. 
Included. Not at all protruding from an enclosure. 
Incumbent (cotyledons). Lying with the back against the radicle. 
Indefinite (stamens). Iuconstant in numbers, or very numerous. 
Indehisceut. Not opening by valves, and remaining persistently closed. 
Indigenous. Native of the country. 
Indurated. Hardened. 
Indusium. The proper covering of the spores or fruit-dot in ferns. 
Inequilateral. Unequal-sided. 
Inferior. Lower or below ; outer or anterior. Inferior ovary, one that is 
adnate to the calyx. 
Inflated. Bladdery. 
Inflorescence. The flowering part of a plant, and especially the mode of 
its arrangement. 
Infra. In composition, below; as “ infra-axillary,” below the axil. 
Inserted. Attached to or growing out of. 
Inter or Intra. In composition, between. 
Interfoliaceous. Between the leaves of a pair, as the stipules of some Ru- 
biacere. 
Internode. The portion of a stem between two nodes. 
Intramarginal. Within or near the margin. 
Int rorse. Turned inward or toward the axis. 
Involucel. A secondary involucre, as that of an umbellet in Umbelliferae. 
Involucellate. Having ah involucel. 
Involucral. Belonging to an involucre. 
Involucrate. Having an involucre. 
Involucre. A circle or collection of bracts surrounding a flower-cluster 
or head, or a single flower. 
Involute. Rolled inward. 
Irregular (flower). Showing inequality in the size, form, or union of its 
similar parts. 
Julaceous. Resembling a catkin in appearance. 
Keel. A central dorsal ridge, like the keel of a boat; the two anterior 
united petals of a papilionaceous flower. 
