sperm_, the skin or coat of a seed, especially the outer coat.

_Equal_, alike in number or length.

_Equally pinnate_, same as abruptly pinnate, 57.

_Equitant_ (riding straddle), 60.

_Erion_, Greek for wool. _Erianthous_, woolly-flowered. _Eriophorous_,
wool-bearing, &c.

_Erose_, eroded, as if gnawed.

_Erostrate_, not beaked.

_Erythros_, Greek for red. _Erythrocarpous_, red-fruited, &c.

_Essential Organs_ of the flower, 80.

_Estivation_, see _aestivation_.

_Etiolated_, blanched by excluding the light, as the stalks of Celery.

_Eu_, Greek prefix, meaning very, or much.

_Evergreen_, holding the leaves over winter and until new ones appear,
or longer.

_Ex_, Latin prefix; privative in place of "e" when next letter is a
vowel. So _Exalate_, wingless; _Exalbuminous_ (seed), without albumen,
21.

_Excurrent_, running out, as when a midrib projects beyond the apex of a
leaf, or a trunk is continued to the very top of a tree, 32.

_Exiguous_, puny.

_Exilis_, lank or meagre.

_Eximius_, distinguished for size or beauty.

_Exo-_, in Greek compounds, outward, as in

_Exocarp_, outer layer of a pericarp, 120.

_Exogenous_, outward growing. _Exogenous stems_, 139.

_Exorhizal_, radicle in germination not sheathed.

_Exostome_, the orifice in the outer coat of the ovule.

_Explanate_, spread or flattened out.

_Exserted_, protruding out of, as the stamens out of the corolla.

_Exstipulate_, destitute of stipules.

_Extine_, outer coat of a pollen-grain.

_Extra-axillary_, said of a branch or bud somewhat out of the axil, 31.

_Extrorse_, turned outwards; the anther is extrorse when fastened to the
filament on the side next the pistil, and opening on the outer side,
101.

_Falcate_, scythe-shaped; a flat body curved, its edges parallel.

_False Racemes_, 78.

_Family_, in botany same as Order, 177.

_Farina_, meal or starchy matter, 136.

_Farinaceous_, mealy in texture. _Farinose_, covered with a mealy
powder.

_Fasciate_, banded; also applied to monstrous stems which grow flat.

_Fascicle_, a close cluster, 77.

_Fascicled_, _Fasciculated_, growing in a bundle or tuft, as the leaves
of Larch, 68, and roots of Peony, 35.

_Fastigiate_, close, parallel, and upright, as the branches of Lombardy
Poplar.

_Faux_ (plural, _fauces_), the throat of a calyx, corolla, &c., 89.

_Faveolate_, _Favose_, honeycombed; same as _alveolate_.

_Feather-veined_, with veins of a leaf all