686 429. Sinapis. 80. CRUCIFERiE. Pl.ex.thal. 
Corn-fields; annual; May. 
Root woody; stem hispid, bristles bent back; leaves ovate, 
toothed, nearly lyrate, petioled, upper leaves sessile ; sepales 
green ; petals yellow ; siliquce 8-angled, beak short. — Eaten 
as cabbage. 
2. Sinapis alba. White mustard. 
Siliquce hispid ; beak slanting, very long, swordshape. 
Sinapi album siliqua hirsuta, semine albo vel ruffo, Rail Syn. 295, 3. 
Sinapi album, Ger.em. 244,3. 
Sinapis alba, Lin. S. P. 933. 
Fields and waysides, also cultivated; annual; June. 
Lower leaves pinnatifid ; upper leaves rather lyrate, rough ; 
sepales green ; petals yellow ; siliquce spread, 4-sided ; beak 
rough, as long as the siliqua; seeds large, yellow. — Young 
herb used as a sallad in winter and spring ; seeds acrid, but 
much milder than the black. 
S. Sinapis nigra. Black mustard. 
Siliquce pressed to the stem, bald, 4-sided ; style awlshape; 
upper leaves linear, lanceolate, not cut. 
Sinapi sativum secundum, Raii Syn. 295, 1 ; Ger. em. 243, 2. 
Sinapis nigra, Lin, S. P. 933. 
Fields and waysides ; also cultivated ; annual ; June. 
Stem much branched, smooth ; leaves petioled ; root- 
leaves rough ; stem-leaves bald ; uppermost bent down ; 
sepales coloured ; petals yellow ; siliquce upright, bald, 
many-seeded; beak short. — Seeds acrid, used as a warm 
sauce, andexternally as a rubefacient. 
4. Sinapis lenuifolia. Fineleaved mustard. 
Siliquce linear, bald, upright ; beak very short ; peduncles 
spreading ; leaves lanceolate, pinnatifid or doubly pinnatifid ; 
lobes very pointed ; stem bald. 
Eruca svlvestris, Raii Syn. 296, 1 ; Ger. em. 246, 2. 
Eruca sylvestris vulgatior, Park. 818. 
Sisymbrium tenuifolium, Lin. S. P. 91T. 
Brassica Erucastrum, Huds. FI. Ang. ed. 1, 253. 
Brassica muralis, Hudson FI. Angl. 290. 
Sinapis tenuifolia, R. Brown in Hort; Kew. 
Wall rocket. Wild rocket. 
Old walls; perennial; July and October. 
Stem much branched, leafy ; leaves smooth ; flowers large, 
citron-yellow ; siliquce upright. 
