Bible Dictionaries
Involucre

Webster's Dictionary

(1):

(n.) A whorl or set of bracts around a flower, umbel, or head.

(2):

(n.) A continuous marginal covering of sporangia, in certain ferns, as in the common brake, or the cup-shaped processes of the filmy ferns.

(3):

(n.) The peridium or volva of certain fungi. Called also involucrum.

Bibliography Information
Webster, Noah. Entry for 'Involucre'. Noah Webster's American Dictionary. https://www.studylight.org/​dictionaries/​eng/​web/​i/involucre.html. 1828.