“The involucrum is formed also of one piece, and the three leaves are laid one over the other as in the annexed flower.”

“They have also always an involucrum below the298 calyx, but this involucrum differs in the different genera.”

“In the genus Malva, the involucrum consists of three leaflets, which in the common Mallow are oblong.”

“When the umbellets are subtended by an involucre, this secondary involucre is called an involucel.”

“Traditionally, the characteristics of involucel bracts and cauline leaves were the major identified characteristics of these three species.”

“Calyx with a 3-leaved involucel at the base, like an outer calyx.”

“We used to help my grandmother gather the flowers, remove the green involucre from beneath the flowerhead and separate the rays, or florets.”

“The peculiar, five-lobed involucre, which becomes large and papery after flowering, contains from three to five flowers.”

“Capsule filling the involucre, circumscissile in the middle, the calyptra persistent at its base.”