^ 



hr^ 



«( 



Sindpis.'] VI, CKUCiFER^ : brassice^. 41 



ivei i 



f (jj strong grounds for considering all to be varieties, as they scarcely 

 ' differ in other respects. 



'k 



the sle 

 )r tli- 



or 



** Valves of pod 3~n€rved ; beak 1 — S-seeded. 



5. B. Monensis Br. {Isle-of-Man or Wall/lower C.) ; leaves 

 pk{ stalked all deeply pinnatifid, lobes oval oblong unequally 

 l^ed,! toothed, in the upper ones linear. — a. stems prostrate glabrous 



or hispid at the base. Sisymbrium Z. : E. B, t. 962. — (3. stems 

 vaii^ I ^^^^^ '^ore leafy and hispid. B. cheiranthus Vill : Brit FL ed. 6. 

 rr iiJi^ Sinapis Koch : E. B. S. t. 2821 • 



unt On the isles and shores of the Clyde, and on both sides of the 

 ourj Irish Channel, Argyleshire, Ayrshire, &c. ; Isle of Man. j8. Jersey, 



%, 5 — 8. — Leaves usually glabrous, except on the petioles. Stems 

 slightly hispid, greedily eaten by sheep and cattle, and probably de- 

 5 gk serving of being cultivated as fodder. 



■ower ' ,. 



-aul 29. Sinapis Linn. Mustard. 



P6»c? 2-valved (with a sterile or one- or several-seeded beak). 

 ^^ J Seeds in a single row. CaL patent. — IsTamed from the Greek- 

 loweri ^^^^^^ the common Mustard^ which again Theis derives from the 

 ]o^^.^^ Celtic Nap (modern Gaelic Newp)^ a Turnep. 



Itivatc * 



■ormei ' « , -^ 



Valves of pod 1-nerved. 



1. S. nigra L. (common M.) ; pods appressed glabrous tetra- 

 gonous, beak sterile short subulate, upper leaves linear-lanceo- 

 late entire glabrous. E. B. t. 969. Brassica ICock. 



Under hedges and in waste places, in England, very rare in Scotland 

 tern (if wild). 0. 6— 9.— Stem 3—4 feet high. Lower leaves large, 

 ad rj lyrate, rough. Pod with a short empty beak, or rather only the per- 

 ;t. I sistent style and stigma at its summit ; its valves bluntly but so 

 strongly 1 -nerved as to make it quadrangular, the four sides being 

 I flat and without any prominent veins. — The seeds yield the mustard 

 'I ^^ ^^^ tables ; of which the best is that from which the oil has been 



expressed, as originally prepared by Mrs. Clements of Durham. 



M.) 



^^.|i nentvly veined with a short l-seeded beak, leaves lyrate hispid, 

 g ori? cauline ones linear-lanceolate, stem much branched. Era- 

 jt bas; castrum K^och : E. B. S. t. 2843. 



prS' Jersey and Alderney, hut rare. ^. 7, 8. — Pods glabrous or 

 hairy, with a glabrous beak and single seed. Seeds ovate, com- 

 ^ pl pressed ; on which account It has been removed to the genus Eru* 

 castrum^ but it is less allied to Brass. Erucastrum, the type of that 

 )USt ' genus, than to Sin. nigra. 



** Valves of pod 3 — 5-nerved. 



j^^ji 3. S. arvensis L. (wild M., CharlocK) ; pods glabrous with 

 uf many angles turgid and knotty longer than the slightly com- 

 U pressed beak, stem and leaves bristly. E. B. t. 1748. 



