Inflated, turgid and bladdery.
Inflexed, bent inwards.
Inflorescence, the arrangement of flowers on the stem, [72].
Infra-axillary, situated beneath the axil.
Infundibuliform or Infundibular, funnel-shaped, [90].
Innate (anther), attached by its base to the very apex of the filament, [101].
Innovation, a young shoot, or new growth.
Insertion, the place or the mode of attachment of an organ to its support, [95], [99].
Integer, entire, not lobed. Integerrimus, quite entire, not serrate.