TETRADYNAMIA. 
793 
Sina'pis ni'gra. (S. nigra.) Pods pressed to, smooth, quadrangular: 
style oval-shaped. 
- tenuifo'lia. ( Sisymbrium tenuifolium .) Pods strap-shaped, 
smooth, upright: beak very short: fruit-stalks expanding: 
leaves spear-shaped, acuminate, pointed, winged or doubly 
winged: stem smooth. 
— -- mura'lis. (S. mar ale .) Pods strap-shaped, smooth, nearly 
upright: beak very short: fruit-stalks expanding: leaves in¬ 
dented, smooth : stem expanding, hairy. 
Raph'anus raphanis'trum. (j R. raphanistrum.) Leaves simply lyre¬ 
shaped: pods of one cell, jointed, scored. 
— -- (R. maritimus. E. Bot.) Leaves interruptedly lyre-shaped : 
pods of one cell, jointed, scored. E.) 
