188 TETRADYNAMIA— SILIQUOSA. Cardamine. 



In shady, rather moist, rocky situations, in the north of England y 

 rare in Scotland. 



Under the rocks by the river side at Matlock bath, Derbyshire 3 

 and in various parts of Westmoreland and Cumberland. 



Annual. Mar/, June. 



Root small, tapering. Herb erect, slender, pale green, smooth in 

 every part, except the stipidas. Stem H or 2 feet high, gene- 

 rally a little branched, leafy, angular, hollow, often zigzag. 

 Leaves of numerous opposite lanceolate hajiets, with an odd 

 one J all equal, more or less notched, rarely entire ; paler be- 

 neath. Stipidas lanceolate, acute, deflexed, clasping the stem, 

 all finely fringed, and surely, (notwithstanding the theory of my 

 learned friend DeCandolle, who thinks them merely segments 

 of a pinnatifid leaf,) as evidently stipulas as in any plant what- 

 ever. Fl. numerous, extremely small, while, occasionally desti- 

 tute of petals. Pods erect, very slender, composing long clus- 

 ters, and discharging their seeds with a crackling noise, and 

 great force, on the slightest touch or concussion, by means of 

 the revolute valves. The whole plant is disagreeably bitterish 

 and pungent, by no means, as John Bauhin terms it, insipid. 



3. C. hirsuta. Hairy Ladies'-smock. 



Leaves pinnate, without stipulas; leaflets stalked, roundish- 

 oblong, notched. 



C. hirsuta. Limu Sp. PI. 915. WiUd. v. 3. 486. FL Br. 698. 

 EngLBot.v. 7. t. 492. Curt. Lond.fascA.t.iS. Hook. Scot. \99. 

 DeCand. Syst. v. 2. 259. Scop. Cam. v.2.2\.t. 38. 



C. flexuosa. With.DjS. 



C. parviflora. Lightf. 1 104. IVith. ed. 2. 686. 



C. impatiens. Fl. Dan. t. 735. 



C. impatiens altera hirsutior. Ran Syn. 300. 



C. n. 472. Hall. Hist. V. 1.205. 



C. quarta. Dalech. Hist. 659./. 



Sisymbrium aquaticum alterum. Camer. Epit. 270. f. 



Hairy Cress. Petiv. H. Brit. t. 47. f. 4. 



In waste or cultivated ground, especially in moist shady places, 

 very frequent. 



Annual. March — June. 



Root of many white fibres. Herb variable in size and luxuriance, 

 deep green, more or less hairy, rarely quite smooth. Stem from 

 S to 12 inches, or more, in height, erect, usually furnished with 

 lateral branches of various lengths, leafy, angular, often zigzag, 

 hollow in the centre, clothed with fine, prominent, scattered 

 hairs. Leaves alternate, all pinnate, on short stalks, without 

 stipulas ; leajlets stalked, sometimes alternate, all for the most 

 part somewhat hairy J those of the radical leaves roundish, or 

 heart-shaped, coarsely notched 3 those of the lower or middle 

 part of the stem more oblong : the upper ones linear-obovate. 



