Imberbis, Latin for beardless.
Imbricate, Imbricated, Imbricative, overlapping one another, like tiles or shingles on a roof, as the bud-scales of Horse-chestnut and Hickory, [27]. In æstivation, where some leaves of the calyx or corolla are overlapped on both sides by others, [98].
Immarginate, destitute of a rim or border.
Immersed, growing wholly under water.
Impari-pinnate, pinnate with a single leaflet at the apex, [57].
Imperfect flowers, wanting either stamens or pistils, [85].
Inæquilateral, unequal-sided, as the leaf of a Begonia.
Inane, empty, said of an anther which produces no pollen, &c.
Inappendiculate, not appendaged.