Ord. 2.] TETRADYNAMIA SILIQUOSA. 137 



3. E. orientate, Brassica orientals, 26. 1804. (Hare's-ear T.) Leaves 

 elliptic-heart-shaped, obtuse, clasping the stem ; radical ones 

 obovate ; all smooth, undivided, entire. 

 Fields, and marit. cliffs. 0. 6. Even, glauc. Fl. whitish. 



337. CHEIRaNTHUS. Wall-flower. 



1. Ch. fruticulosus, 27. 1934. (Wild W.) Leaves lanceolate, acute ; 

 most hoary beneath, with simple close hairs. Stem shrubby. 

 Branches angular. 

 Walls. Tj.5, 6. Cal purplish. Pet. bright yellow. Style prominent. 



338. MATTHiOLA. Stock. 



1. M. incdna, Cheiranthus incanus, 27. 1935. (Hoary S.) Stem 



shrubby, upright, branched. Leaves lanceolate, obtuse, entire, 

 hoary. Pods without glands. 

 Marit. cliffs, not indigenous. Tj . 5. Fl. light purple, fragrant. 



2. M. sinudta, Ch. sin. 7. 462. (Great Sea S.) Stem herbaceous, 



spreading. Leaves downy, glandular, obtuse, sinuated ; those 

 of the branches undivided. Pods rough with prominent glands. 

 Southern sea coasts. $ . 8. Fl. purple, fragrant in the evening. 



339. HeSPERIS. Dame's-violet. 



1. H. matrondlis, H. inodora, 11. 731. (Common D.) Partial 

 flower-stalks the length of the calyx. Leaves ovate-lanceolate, 

 toothed. Stem upright, slightly branched. Pods smooth, irregu- 

 larly tumid, equilateral, nearly erect. 

 Hilly past, near rills. y..5, 6. Somewhat hoary . Fl. rose-coloured. 



340. ARABIS. Wall-cress, or Rock-cress. 



1. A. thalidna, 13. 901. Sisymbr. th. Br. Fl. (Common W.) Leaves 



hairy, more or less toothed ; radical ones stalked, oblong. Sta- 

 mens not much shorter than the petals. Stem branched. Pods 

 pointing upwards. 

 Walls, dry banks, &c. ©. 4. Fl. small, white. Pod a little curved. 



2. A. stricta, 9. 614. (Bristol R.) Leaves toothed, obtuse, bristly; 



radical ones somewhat lyrate. Stems hairy. Petals nearly erect. 

 Calyx smooth. 

 Limestone rocks near Bristol. If. . 5. Fl. larger, cream-col. Pod 

 straight. 



3. A. hispida, Cardamine hastulata, 7. 469. (Alpine R.) Radical 



leaves lyrate or hastate, smooth or bristly, tufted ; stem-leaves 

 lanceolate, entire, scattered, mostly smooth. Petals spreading. 

 Root branched at the crown. 

 Alpine rocks ; rare. 1/ . 6, 7. Fl. pale purple, or white. 



4. A. cilidta, Turritis alpina, 25. 1746. (Fringed R.) Leaves some- 



what toothed, smooth on both sides, distantly fringed and 

 bearded ; radical ones obovate. Stem simple. 

 Marit. cliffs, W. of Ir. rare. $ . 7, 8. Stem-leaves ellipt. Fl. white. 



