cxxxv. 



MORUS NIGRA. 

 Common Mulberry -Tree. 



Class XXI. Moncecia. — Order IV. Tetrandria. 



Nat. Ord. Urtice^:. 



Gen. Char. Male flowers:— Calyx four-parted. Corolla 

 none. Female flowers: — Calyx four-leaved. Corolla 

 none. Styles two. Fruit, baccate, consisting of seve- 

 ral one-seeded nuts, invested by the pulpy calyx. 



Spec. Char. Leaves cordate, somewhat lobed, unequally 

 serrate, scabrous above, villous beneath. 



Description. — The tree much branched, covered with a 

 rough brownish-grey bark, and seldom exceeds thirty feet in 



