TETRADYNAMIA-SILIQUOSA. Nasturtium. 193 



Water Cresses are well known for their agreeable warmth and fla- 

 vour, in the form of a salad, and are esteemed a wholesome 

 stomachic. I should have preferred the old established Latin 

 name N. aquaticum ; but would not, without necessity, dissent 

 from the two great authorities who have established the present 

 genus. 



2. N. sy/ve6i?'e. Creeping Yellow Cress. 



Leaves pinnate ; leaflets lanceolate, deeply serrated or cut. 

 Root creeping. 



N. svlvestre. Br. in Ait. H. Kew. v. 4.1 10, DeCand. Sijst. v 2. 



190. Cojjip. ed. 4. 1 12. Hook. Scot. 201 . 

 Sisymbrium svlvestre. Linn. Sp. PL 9\G. Willd. v. 3.489. Fl. 



Br. 701. Engl. Bot.v. 33.1.2324. Curt. Lond.fasc.3. t.4\ . 

 S. n. 485. Halt. Hist. V. I. 2\0. 



Brachiolobos sylvestris. AUion. Pedem.v. 1. 278. t. 56./. 2. 

 Eruca sylvestris. Fuchs. Hist. 263./. 

 E. aquatica. Raii Syn.297. Ger. Em. 248./. 

 E. quibusdam sylvestris repens, flosculo purpureo (rather parvo) 



luteo. Bauh.Hist.v.2.S66.f. 

 E. sylvestris seu palustris minor procumbens et repens luteo par- 



voque flore. Moris, v. 2. 23 1 . sect. 3. t. 6./. 17. 

 Raphanus minimus repens luteus, foliis tenuiter divisis. Moris, v. 2. 



236. sect. 3. t. 7. f. 1. 

 Water Rocket. Petiv. H. Brit. t.46.f.5. 



In gravelly wet meadows, about the margins of rivers and ditches. 



In Tothill'fields, and other low watery situations in the vicinity of 

 the Thames. Hudson and Curtis. On Bungay Common, Suf- 

 folk. Mr. Woodward. Below Leeds. Rev. Mr. Wood. Near 

 Worcester. Dr. Stokes. Frequent in Bedfordshire. Rev. Dr. 

 Abbot. 



Perennial. June — September. 



Root creeping extensively. Stems erect, though wavy or zigzag, 

 a foot or more in height, leafy, angular, and furrowed, roughish 

 with minute points. Leaves pinnate ; the upper ones pinnati- 

 fid ; the lower stalked ; leaflets or segments of all elliptic-lan- 

 ceolate, or oblong, smooth, unequally serrated, or variously jag- 

 ged, often decurrent. Clusters terminal, panicled, much length- 

 ened out after flowering, and becoming zigzag. Fl. numerous, 

 small, of a golden yellow, the cahjx partaking of the same co- 

 lour. Pods very sparingly perfected. 



3. ^. terrestre. Annual Yellow Cress. 



Leaves pinnatifid, iniequally toothed. Root tapering. Pe- 

 tals scarcely so long as the calyx. Pod curved. 

 VOL. in. o 



