202 TETRADYNAMIA— SILIQUOSA. Cheiranthus. 



■ Leaves stalked, broadly heart-shaped, acute, veiny, with many 

 prominent broad teeth. Fl. plentiful, white, not unornamental 

 to hedge banks in tiie spring. Cal. whitish, not quite closed. 

 Pods erect, smooth, on spreading stalks. 



3. E. orientale. Hare's-ear Treacle mustard. 



Leaves elliptic-heart-shaped, obtuse, clasping the stem ; ra- 

 dical ones obovate ; all smooth, glaucous, undivided, en- 

 tire. 



E. orientale. Br. in Ait. H. Kcw.v.4. \\7. Comp.ed. 4. l\3. 



E. perfoliatum. DeCand. Syst. v. 2. 508. 



Brassica orientalis. Linn. Sp. PL 931. Willd. v. 3. 545. Fl. Br. 



717. Engl. Bot. v. 26. t. 1804. Pollich v. 2. 247. Jacg. Austr. 



t.282. 

 B. campestris perfoliata, flore albo. Bauh. Pin. 112. Dill, in Rail 



Syn. 293. Moris, v. 2. 210. sect. 3. t. 2./ 19. 

 B. campestris prima. Clus. Hist. v. 2. 127./. Dalech. Hist. 525./. 

 Eruca n. 457. Hall. Hist. «. 1. 199. 



Perfoliata siliquosa. Ger. Em. 536./. Bauh. Hist. v. 2. 835./. 

 White Thorow Colewort. Petiv. H. Brit. t.45.f.5. 



In fields and on cliffs near the sea. 



In Essex, but rare. Petiver. Near Harwich, on the cliffs, as also 

 at Bawdsey, near Orford, Suffolk. Dale. In fields near God- 

 stone and Marshfield, Sussex. Huds. 



Annual. June. 



Root small, tapering. Herb glaucous, very smooth in every part, 

 even the radical leaves. Stem from 1 to 2 feet high, seldom 

 branched, bearing several clasping, not perfoliate, leaves; the 

 radical ones obovate, recurved ; all quite entire and a little 

 fleshy. JF7. rather few, in a lax corymbose cluster, cream-co- 

 loured. Pet. but little spreading. Pods 2\ or 3 inches long, 

 exactly square, upright, though not quite straight. 



Reichard quotes under this Erysimum perfoliatum, Crantz Austr. 

 (fasc. 1 .) 27, and he is copied by Willdenow and DeCandoUe ; 

 but I find no such name any where in Crantz ; and as the leaves 

 are not perfoliate, orientale, adopted by Linnaeus from Tourne- 

 fort, though not a good name, does not require to be changed. 



Brassica austriaca of Jacq. Austr. t. 283, which I had ."Juspected 

 might be the same species, is judged by Prof. DeCandolle to be 

 different, having smaller more yellow^ow^ers, and elevated ribs 

 or veins on the valves of the pod. We have it not in England. 



337. CHEIRANTHUS. Wall-flower. 



Linn. Gen. 339. Juss. 238. Fl. Br. 709. Comp. ed. 4. ] 08. Br. in 

 Ait. H. Kew. «. 4. 1 1 8. DeCand. Syst. v. 2. 1 78. Lam. t. 564./. 1 . 

 Leucojum. Tourn.t.l07. 



