202 TETRADYNAMIA-SILIQUOSA. Cheiranthus. 



Leaves stalked, broadly heart-slmped, acute, veiny, with many 

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

 to liedge banks in the 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. 



Yj. orientale. Br. hi Alt. H. Kew. v. 4. 11/. Comp. ed. 4. 113. 



E. perfoliatum. DeCand. Syst. xi. 2. 508. 



Brassica orientalis. Linn. Sp. PL 931. fVilld. v. 3. 54.5. Fl. Br. 



717. Engl. Bot. v. 26. t. 1 804. PoUich v. 2. 247. Jacq. Aiistr. 



t.282. 

 B. campestris perfoliata, flore albo. Bauh. Pin. 1J2. Dill, in Rail 



Syn. 293. Moris, r. 2. 2 1 0. sect. ,3. t 2./. 19. 

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

 Eruca n, 457. Hall. Hist. d. 1. 199. 



Perfoliata siliqiiosa. Ger.Em.DSG.f. Bauh. Hist. v. 2.835. f. . 

 White Thorow Colevvort, Petiv. H. Brit. t. Ab.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 fiel5s near God- 

 stone and Marshfield, Sussex. Hiids. 



Annual. June. 



Root smallj 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. Fl. 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, 



Reicharci quotes under this Erysimum perfoliatum, Crautz Austr, 

 {fasc. 1 .) 27, and he is copied by Willdenow and DeCandolle ; 

 but I find no such name any wiiere in Cran z; and as the leaves 

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

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



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

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

 different, having smaller more y^Wow flowers, 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. JF7. Br. 709. Comp. ed. 4. 1 08. Br. in 

 Ait. H. Kew. zj. 4. 11 8. DeCand. Syst. v. 2. 1 78. Lam. t. 564./. 1 . 

 Leucojum. Tourn.t.l07. 



