Incarnate, flesh-colored.
Incised, cut rather deeply and irregularly, [58].
Included, enclosed; when the part in question does not project beyond another.
Incomplete Flower, wanting calyx or corolla, [86].
Incrassated, thickened.
Incubous, with tip of one leaf lying flat over the base of the next above.
Incumbent, leaning or resting upon; the cotyledons are incumbent when the back of one of them lies against the radicle, [128]; the anthers are incumbent when turned or looking inwards.
Incurved, gradually curving inwards.
Indefinite, not uniform in number, or too numerous to mention (over 12).
Indefinite or Indeterminate Inflorescence, [72].