in botany, a genus of the pentandra pentagynia clas. The calyx consists of five leaves, and the corolla of five petals; there are five nectariferous glands at the base of the germen; and it has five capsules. There are 17 species, none of them natives of Britain.

CRATÆGUS, in botany, a genus of the icofandria digynia clas. The calyx has five segments, and the corolla five petals; the berry is below the flower, and contains two seeds. There are nine species, three of which are natives of Britain, viz. the aria, or white bean-tree; the terminalis, service-tree, or forb; and the oxyacantha, white-thorn, or hawthorn.