210 TETRADYNAMIA— SILIQUOSA. Arabis. 



Draba siliquosa similis planta prsecox annua. Moris, v. 2,235. 



sect. 3. t. 7.f. 5. 

 Aizoon Telephium. Dalech. Hist. 1131./. 

 Thale Cress. Peiiv. H. Brit. t. 48./. 1. 

 /3. Turritis minor foliosa. Raii Syn. 294. 

 Brassica spuria minima, caule magis folioso hirsutior. Raii Syn. 



ed. \.24l.ed.2. 166. 

 B. spuria exilis^ non laciniata, caule magis folioso hirsutior, foliis 



subrotundis. Pliik. Phyt. t. 80./. 2. 

 Broad Thale Cress. Petiv. H. Brit. t. 48./. 2. 



On walls, dry banks, cottage roofs, and dry sandy ground, every 

 where. 



Annual. April. 



Root tapering, fibrous. Herb varying greatly in luxuriance, up- 

 right, simple or branched, hairy, light green, from 3 to 12 inches 

 high. Leaves various in shape and size, lanceolate, ovate, or 

 obovate, entire or unequally notched, their pubescence short, 

 mostly forked ; radical ones close to the ground, numerous, 

 stalked ; the rest smaller, few and scattered, sometimes linear- 

 lanceolate. Ft. small, white, corymbose, on slender stalks. 

 Cal. generally a little bristly in the upper part. Pet. twice as 

 long, nearly upright. Glands minute, and inconstant, curved, 

 but scarcely protruding between the calyx-leaves. Pods ascend- 

 ing, on spreading stalks, slender, somewhat curved, smooth, 

 hardly an inch long. 



Plukenet's and Petiver's figures of the variety /3 are very dissimilar, 

 but specimens may be found answering to either, nor are any of 

 the varieties at all constant. The whole plant has a warm pun- 

 gent flavour, like the rest of its class. 



2. A. stricta. Bristol Rock-cress. 



Leaves toothed, obtuse, bristly ; radical ones somewhat ly- 

 rate. Stems hairy. Petals nearly erect. Calyx smooth. 



A.stricta. Huds. 292. Fl.Br.7\2. Engl. Bot.v.9.t.6l4. Velley 

 PL Marit. t.b. Shierdif, Bristol Guide, 83./ Hook.Lond. t. 4. 

 DeCand. Syst. v. 2. 224. M'illd. Sp. PL v. 3. 539. 



A. hispida. Ait. H. Kew. ed. \.v.2. 400j not of LinncEus. 



A. n. 453. HalL Hist, v.].] 97. Noinend. 42. 



Turritis Raii. rdlars Dauph. v. 3. 326. t. 38. 



Hesperis alpina minor, flore albo, siliquis longis. Raii Syllog. 296. 

 I have it from Mount Saleve. 



Cardamine pumila, bellidis folio, alpina. Raii Syn. ed. 2.\72.ed. 3. 

 300? but not of Gerarde, whose wooden cut, copied by Petiver, 

 H. Brit. t. 47./ 9, really belongs to Arabis pumila of Jacquin, 

 A. nutans, Willd.v.3.537. 



On limestone rocks in the south-west part of England. 



On St. Vincent's rocks near Bristol, Huds. Velley. On the south 



