686 429. Sinapis. 80. CRUCIFERiE. Flex, thai 



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 alburn siliqua hirsuta, semine albo vel rufifo, Rati 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 ; siliqucB 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 awishape; 

 upper leaves linear, lanceolate, not cut. 



Sinapi sativum secundum. Rail 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 tenuifolia. Fineleaved mustard. 



Siliquce linear, bald, upright; beak very short; peduncles 

 spreading ; leaves lanceolate, pinnatifid or doubly pinnatifid ; 

 lobes very pointed ; stem bald. 



Eruca sylvcstris, Raii Syn. 296, I ; Ger. em. 246, 2. 



Eruca sylvestris vulgatior, Park. 818. 



Sisymbrium tenuifolium, Lin. S, P. 917. 



Brassica Erucastrum, Huds. Fl.Ang. ed. 1, 253. 



Brassica muralis, Hudson Fl. Angl. 290. 



Sinapis tenuifolia, R. Brown in Hort. Kew. ' 



Wall rocket. IVild rocket. 



Old walls; perennial; July and. October. 

 Stem much branched, leafy; leaves s,vciOOi\\', flowers large, 

 citron-yellow ; siliquce upright. 



