Page:An introduction to physiological and systematical botany (1st edition).djvu/209

 Rh of which are frequent in the class Tetradynamia.

verticillato, in a whorted manner, the leaflets cut into fine divaricated segments embracing the footstalk, as Sium verticillatum, Fl. Brit. ''Engl. Bot. t.'' 395.

Auriculatum, an auricled leaf, is furnished at its base with a pair of leaflets, properly distinct, but occasionally liable to be joined with it, as Salvia triloba, Fl. Græc. t. 17, and Dipsacus pilosus, ''Engl. Bot. t.'' 877. Linnæus in the last example uses the term appendiculatum, which is correct, but superfluous, and I have therefore ventured to apply it somewhat differently, p. 173.

Conjugatum, conjugate, or yoked, consists of only a pair of pinnæ or leaflets, and is much the same as binatum. Instances of it are in the genus Zygophyllum, whose name, equivalent to Yoke-leaf, expresses this very character; also in Lathyrus sylvestris, ''Engl. Bot. t. 805, and latifolius, t.'' 1108. Bijugum, trijugum, quadrijugum, multijugum, &c., express particular numbers of pairs