SINAPIS. DIPLOTAXIS. 2/ 



stinguish this plant from the preceding. — Borders of fields. A. 

 or B. V. VI. Rape, or Coleseed. 



** Valves of pod 3-ribbed j beak 1 — 3-seeded. 



4. B. monensis (R. Br.) ; 1. stalked all deeply pinnatifid, lobes 

 oblong unequally toothed those of the upper 1. linear. — E.B. 962. 

 — Fl. yellow. St. usually prostrate, glabrous. L. glabrous. — 13. B. 

 Cheiranthus (Vill.) ; st. 1 — 3 ft. high erect leafy hispid below, 

 1. hispid. Sinapis, E. B. S. 2821. — On the western coasts. B. 

 or P. VI.— VIII. E.S. 



14. Sinapis Linn. Mustard. 



1. S. nigra (L.); pods quadrangular adpressed, beak short 

 sterile subulate, valves l-veined, lower 1. lyrate, terminal lobe 

 large and lobed, upper 1. lanceolate entire. — E.B. 969. iJ.ii. 88. 

 — Fl. yellow. Lower 1. large, rough. — Willowy riverbanks. A. 

 VI.— VIII. Black Mustard. 



2. S. arvensis (L.) ; pods subcylindrical knotty longer than 

 the conical compressed beak, valves 3-veined, 1. ovate the lower- 

 most sublyrate stalked, upper 1. sessile. — E. B. 1748. R. ii. 86. 

 — Fl. large, yellow. Whole plant scabrous. Pods glabrous or 

 rough with deflexed bristles ; beak usually with 1 seed ; valves 

 with faint intermediate veins. Stem 1 — li foot high. — Corn- 

 fields. A. VI.— VIII. Charlock. 



3. S. alba (L.) ; pods cylindrical knotty shorter than the sword- 

 shaped beak, valves 5-veined, 1. lyrate pinnatifid irregularly lobed. 

 —E. B. 1677. R. il. 85.— Fl. large, yellow. Pods hispid. St. 

 1 — 2 feet high. — Cultivated and waste land. A. VII. White 

 Mustard. 



[4. S. incana (L.) ; pods adpressed tui-gid prominently veined 

 with a short 1-seeded beak, 1. lyrate hispid, stem-1. hnear- lanceo- 

 late, St. much branched.— E. B. S. 2843.— St. 1—3 feet high, 

 branches divaricate with few very small leaves. Pods very short, 

 glabrous or hairy, often scarcely longer than their glabrous 

 beak. — Sandy places in Jersey and Alderney. B. VII. — VIII.J 



15. DiPLOTAXis Cand. Wall-Mustard. 



1. D. tenuifolia (DC); st. woody below branched subglabrous 

 leafy, 1. glaucous linear-lanceolate very acute sinuate-dentate or 

 pinnatifid, segments linear remotely dentate, pet. roundish-ob- 

 ovate with a short claw.— E. B. 525. Sinapis Sm. — Pedicels 

 usually twice as long as the sepals. Fl. large, pet. blunt but 

 slightly acuminate. St. 1 — H foot high. Plant foetid.— Old 

 walls. P. VII.— IX. E.S. 



