Involucre
Pronunciation : In"vo*lu`cre
Part of Speech : n.
Etymology : [L. involucrum a covering, wrapper, fr. involvere to wrap up, envelop: cf. F. involucre. See Involve.] (Bot.) (a) A whorl or set of bracts around a flower, umbel, or head. (b) A continuous marginal covering of sporangia, in certain ferns, as in the common
Source : Webster's Unabridged Dictionary, 1913