SINAPIS. DIPLOTAXIS. 27 



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

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



** Valves of pod 3-ribbed ; beak l3-seeded. 



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

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

 Fl. yellow. St. usually prostrate, glabrous. L. glabrous. /3. B. 

 Cheiranthus (Vill.) ; st. 13 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.nlgra (L.); pods quadrangular adpressed, beak short 

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

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

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

 VI. VIII. Black Mustard. 



2. (5. 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 H 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. ii. 85. Fl. large, yellow. Pods hispid. St. 

 12 feet high. Cultivated and waste land. A. VII. White 

 Mustard. 



[4. S. incana (L.) ; pods adpressed turgid prominently veined 

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

 late, st. much branched. E/B. S. 2843. St. 13 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 subalabrous 

 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. 



ci' 



