SISYMBRIUM. ERYSIMUM. 31 



[*& polycerdtium (L.); pods subulate spreading sessile ax- 

 illary about 3 together, 1. lanceolate repand-dentate or subhas- 

 tate. Sy. E. B. 97. E. ii. 73. St. leafy throughout, branched, 

 '- prostrate." Fl. small. Burv St. Edmunds, naturalized. A. 

 VII. VIII.] E. 



2. S. Trio (L.) ; pods terete 4 times as long as their pedicel* 

 erect-patent, when young exceeding the ii., seeds oblong, 1. 

 runcinate-pinnatiud, lobes dentate oblong the terminal lobe 

 angular, lobes of the upper L lanceolate with the terminal lobe 

 hastate. E. B. 1631. R. ii. 75. Erect, branched, st. and 1. 

 glabrous. Fl. yellow. Pods narrow, linear. Pedicels slender. 

 Near old towns, rare. A. VII. VIII. London Rocket. E. S. I. 



3. S. Sophia (L.) ; pods terete 3 times as long as the pedi- 

 cels erect-patent, seeds oblong, /. doubly or trebly pirmatijid. 

 segments linear or linear-lanceolate. E. B. 963. R. ii. 84. St. 

 erect, branched, and as well as the 1. slightly downy. Fl. 

 yellow. Pet. short. Pods linear, narrow. Pedicels slender. 

 'Waste places, not common. A. VI. VIII. Flixweed. E. S. 1. 



4. 8. Thalidnum (Gay) ; pods 4-angular linear ascending 

 twice as long as their patent pedicels, seeds oblong not striate, 

 /. oblong-lanceolate undivided toothed. Arabis Sm. E. B. 901. 

 Conringia R. ii. 60. St. erect, slender, much branched, with 

 few leaves which are nearly all radical. Fl. small, white. Pods 

 angular, not convex on the back as in the other species nor with 

 the lateral longitudinal veins so strongly marked. On walls 

 and banks. A. IV. V. and IX. X. E. S. I. 



\ 8. pannon'icum (Jacq.) (= S. Sinapistrum Crantz ?) is quite 

 established near Crosley, Lane. J. of B. x. 239.] 



10. ALLIA'RIA Adans. Sauce-alone. 



1. A. officindlis (Andrz.) ; 1. heartshaped the lower ones re- 

 niform sinuate-dentate all stalked, pods erect-patent much 

 longer than their stalks, seeds oblong sub cylindrical striate. 

 R. ii. 60. Sisymbrium Alliaria Scop. E. B. 796. St. erect, 

 13 feet high, slightly branched. L. large, thin, veined, 

 smelling like garlic when bruised. FL white. Hedge-banks. 

 B. V. VI. Jack-by-the-Hedge. E. S. I. 



11. ERYS'XMUM Linn. Worm-seed. 



1. E. cheiranthoi' des (L.) ; 1. oblong-lanceolate slightly toothed 

 with stellate-tripartite hairs, all narrowed into a slight foot- 

 stalk, pedicels longer than the calyx 2- or 3-fold shorter than 

 the pods, ped. patent, pods suberect, seeds small many. E. B. 



