Definitions for "Involucre"
A whorl or set of bracts around a flower, umbel, or head.
A continuous marginal covering of sporangia, in certain ferns, as in the common brake, or the cup-shaped processes of the filmy ferns.
A calyx-like structure formed by of bracts around or just below the base of a usually condensed inflorescence
Keywords:  volva, peridium, fungi, called
The peridium or volva of certain fungi. Called also involucrum.