involucre

• 77.--_Leontodon_. Scape with two leaves; the bracts of the involucre are also leafy Production of leaves on a usually leafless inflorescence.=--The development of the bracts of an inflorescence to such an extent that they resemble ordinary leaves is elsewhere alluded to as of common occurrence. —  Vegetable Teratology An Account of the Principal Deviations from the Usual Construction of Plants
• [428] Irmish[429] records an analogous case in Anemone Hepatica_, wherein the involucre was doubled. —  Vegetable Teratology An Account of the Principal Deviations from the Usual Construction of Plants
• [508 The fruit of the common groundsel (_Senecio vulgaris_) is in its normal condition two or three times shorter than the involucre, and cylindrical for its whole length, but it frequently happens that the fruits become as long as the involucre itself, and taper from the base upwards, so as to become beaked. —  Vegetable Teratology An Account of the Principal Deviations from the Usual Construction of Plants
• Appearing with the unfolding leaves in close clusters at the ends of the branches, each cluster subtended by a very conspicuous 4-leafed involucre (often mistaken for the corolla and constituting all the beauty of the blossom), the leaves of which are white or pinkish, 1-1/2 inches long, obovate, curiously notched at the rounded end. —  Handbook of the Trees of New England
• 109, K_) have the small flowers surrounded by a cup-shaped involucre (_L_, M_) so that the whole inflorescence looks like a single flower. —  Elements of Structural and Systematic Botany For High Schools and Elementary College Courses

Allen's Synonyms and Antonyms