Calyptra

[kә'liptrә]

Definition

(noun.) the hood or cap covering the calyx of certain plants: e.g., the California poppy.

Typist: Thaddeus--From WordNet

Definition

(n.) A little hood or veil, resembling an extinguisher in form and position, covering each of the small flasklike capsules which contain the spores of mosses; also, any similar covering body.

Checked by Aurora

Definition

n. a hood covering esp. that of the theca or capsule of mosses.—adjs. Calyp′trate furnished with such; Calyp′triform Calyptrimor′phous having the form of a calyptra.—n. Calyp′trogen the root-cap.

Checked by Gwen