Apetalæ (apetale)

pl. [NL. (sc. plantæ), fem. pl. of a petal us, without petals: see apeta lous.] Plants destitute of petals, in the natu ral system of botany, a division of dicotyledo nous plants in which the corolla, and often the calyx as well, is absent. They are also called In comp letæ, and are divided into the Monochlamydeæ, in which the corolla alone is absent, as in the elm, nettle, etc., and the Achlamydeæ, in which the calyx and the corolla are both absent, as in the willow, oak, etc. apetalous (a-pet'a-lus), a. [ Apetala .