involucrum

[ in-vuh-loo-kruhm ]

noun

, plural in·vo·lu·cra [in-v, uh, -, loo, -kr, uh].

1. involucre.

Word History and Origins

Origin of involucrum¹

1670–80; < New Latin, Latin involūcrum a wrap, cover, equivalent to involū- (variant stem of involvere to wrap, cover; involute ) + -crum instrumental suffix

Example Sentences

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

From Project Gutenberg

In the genus Malva, the involucrum consists of three leaflets, which in the common Mallow (Malva sylvestris) are oblong.

From Project Gutenberg

As the seeds ripen, the involucrum falls off, but the large loose-looking calyx remains on.

From Project Gutenberg

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

From Project Gutenberg

It belongs to that section of its numerous genus having an involucrum of stalked leaflets.

From Project Gutenberg