TETRADYNAMIA-SILIQUOSA. Sinapis. 223 



Sinapi n. 465. HaU. Hist. v. 1 . 202. 



S. Sativum secundum. RaiiSyn.295. Ger. Em. 244; description 

 only. 



S. sativum primum. Ger. Em. 244. f. Dod. Pempt. 70G.f. 



S. siliqua latiuscula glabra semine rufFo, sive vulgare. Bauh. Hist. 

 V. 2.855./; good. 



S. primum. Malth.Valgr.v.\.5\4.f. Camer. Epit. 332./. 



S. rap£B folio. Moris, v. 2. 215. sect. 3. t. 3./. 1. 



Common Mustard. Petiv. H. Brit. t. 45. f. 1 1 . 



In fields, waste ground, and on banks by road sides. 



Annual. June, July. 



A taller plant, with round smooth branches, more spreading than 

 either of the foregoing. Lower leaves large, lyrate, rough, va- 

 riously lobed and toothed ; upper ones stalked, smooth, narrow, 

 entire, spreading or dependent, Fl. smaller than in the two 

 former. Cal. yellowish, widely spreading, but not quite hori- 

 zontal. Pet. obovate. Pods small, obtusely quadrangular, 

 neariy even, and smooth, tipped with the permanent, quadran- 

 gular, somewhat elongated, style, and capitate stigyna ; but want- 

 ing the proper, often seed bearing, beak of this genus, though 

 the style finally becomes tumid at the base. Seeds several, 

 brown, sufficiently known for their domestic use, and stimulating 

 medical properties. 



All the figures of the old authors, J. Bauhin's excepted, are copies 

 of Matthiolus, and are all defective, as wanting the narrow, en- 

 tire, more or less pendulous, upper leaves, so characteristic of 

 the present species. 



4. S. tenuifolia. Narrow-leaved Wall Mustard. 



Pods erect, on spreading stalks, linear, compressed, slightly 

 beaked. Seeds two-ranked. Leaves once or twice pin- 

 natifid ; the uppermost undivided. Stem smooth. 



5. tenuifolia. Br. in Ait. H. Kew. v. 4. 128. Comp. ed. 4. 1 14. 

 Hook. Scot. 204. 



Diplotaxis tenuifolia. DeCand. Syst. v. 2. G32. Grev. Edin. 147. 

 Sisymbrium tenuifolium. Linn. Sp. PL 017. Willd. v. 3. 493. Fl. 



Br. 703. Engl. Bot.v. 8. ^.525. Bull. Fr. t.335. 

 Brassicamuralis. Huds.290. With. 592. Curt.Lond.fasc.3.t.38. 

 B. Erucastrum. Huds. ed.l. 253. 

 Erucan.461. Hall. Hist. v.l. 200. 

 E. sylvestris. Raii Syn.296. Dod.Pempt.703.f. Ger. Em.246.f. 



Matth. Valgr. v. 1 . 484./. Camer. Epit. 307 .f. 

 E. sativa. Fuchs. Hist. 262./. 



E. tenuifolia perennis, flore luteo. Bauh. Hist. v. 2. 861 ./. 

 Wall Rocket. Petiv. H. Brit. i. 46./ 8. 

 On old walls, and heaps of rubbish. 



