All Sources -
Updated Media sources (1) About encyclopedia.com content Print Topic
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 envelope XVI; (bot.) whorl of bracts XVIII. — F. involucre or L. involūcrum, f. involvere INVOLVE.
More From encyclopedia.com
Bract , bract •abreact, abstract, act, attract, bract, compact, contract, counteract, diffract, enact, exact, extract, fact, humpbacked, hunchbacked, impact,… Unisexual Flower , unisexual flower A flower that possesses either stamens or carpels but not both. A plant may be unisexual (dioecious), possessing only male flowers o… Perianth , perianth 1.. Of a flower, the outer covering, composed of the floral leaves, usually an outer greenish calyx, and an inner, brightly coloured corolla… Pasqueflower , pasque-flower species of anemone. XVI. orig. passeflower — F. passe-fleur, f. passer PASS2 + fleur FLOWER; alt. to pasque-flower (XVI) after pasque E… Rafflesia , Rafflesia (family Rafflesiaceae) A genus of plants that are wholly parasitic on vines of the family Vitaceae. The flowers are showy and huge (up to 1… clematis , clematis •Attis, gratis, lattice •malpractice, practice, practise •Atlantis, mantis •pastis •Lettice, lettuce, Thetis •apprentice, compos mentis, in…
You Might Also Like