= 
57m TETRADYNAMIA, SILIQUOSA. Sisymbriumy 
when they do. the ipa isso an -oblong-egg-shaped ‘oes as 
Tonnens deseri 6 it. 
Mr? Novi snd Su On the ‘banks of the Severny: 1 neak 
Worcester. 2 P. June, July. 
etals longer than the ct 
Wate be oe Radish Water-cress Watey laces anon 
banks o ers. »_ P. Jun iy 
qrands't See ee ieiede, soenbid aeteiadl Sig tyr 
gmphib'ium. S. Fans a Pap feattes wing-cleft, serrated? 
asi 
+ Rl. dan, 984-Kniph. 12sC.B. pr. 38- 1-Park. 1m on 
Pet. 49. 8-H. ox. ili, 7 row 3. 4—Ger. Sinai ttt. 
234, 250 ef ~ een VES ° eo 
When growing in water es some’ » depth the deaster oe the 
sorfate strap-shaped, winged, nearly like those of the Horomia; 
spear-shaped, serrated. Linn. Stem oth 
ted, smiosth, half 
ae at first + cei afterwa rds 
- - Woopwarp. Stem smo cored, ¢ +96 int 
Leaves egg-spea 2 Sein 3 scolloped and set with litde teeth at 
the edge, with often from 1 to 3 winged clefts at the base. Leaf 
stalks semi-cylindrical, channeled above. © Fruit-stafks while in 
ower about 2 an inch long, and upri iglit; but Becbgits 
bendi ing back and pointing downwards. oak the one 5 
Sip. ee amphi ibium. aquaticum 6 Lixx, S. eanitie 
Potiicu. hatte sylvestris seu potable: R. ‘Syn, 301... (St) 
{In the Foss at York. Mr. Woop,—Side of the river and 
ae ditches. at Tamworth, and of the Sevetn near’ Worcestels 
Var. 2. Leaves deeply’ wing-cleft. ; 
-Kniph. 5+Ger, 185. 2-F. B. ii. 867. 2-Pet. 49. ote tle 
i. 319-Ger. em. 240, Q—Park, 1228. 1.' 
» the clefts extending nearly to the mid-rib, segments 
epear. tap apd pine ne , generally very entire, or with 1 of 
2 ‘saw-l i 
tire ate ps ving hitermestign specimens with leaves pretty 
deeply cut and serrate _ ST, 
2% ae 
