involucre
involucre A protective structure in some flowering plants and bryophytes. In flowering plants it consists of a ring of bracts arising beneath the flower cluster of those species with a capitulum (i.e. members of the dandelion family) or an umbel (i.e. members of the carrot family). In mosses and liverworts the involucre is a projection of tissue from the thallus that arches over the developing archegonium.
involucre
involucre envelope XVI; (bot.) whorl of bracts XVIII. — F. involucre or L. involūcrum, f. involvere INVOLVE.
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