TETRADYN. SILICUL. 



HAD. Waste places near the sea, and among rubbish. Ft. June. Q. 

 'Stem sometimes a foot high, much branched. Seed-vessels numerous. 



3. L. campestre (hoary Field Pepperworl), pouch ovate emur- 

 ginate winged rough with minute scales, style scarcely longer 

 than the notch, cauline leaves sagittate toothed. Lightf. 

 p. 341, and E. B. t. 1803 (Thlaspt camp.). 



II.V3. Corn-fields and dry gravelly soils, but not common, Dr. Par- 

 sons. Langside, Glasg., Dr. Brown. Abundantly on the road near 

 Drumpellier, Glasg., Hop/c. Common about Dumfries, Mr. Arnott. 

 Ft. July. O - 



Ten to twelve inches high. Stems solitary, branched above. Lower 

 leaves almost spathulate, all slightly pubescent, as well as the ra- 

 cemes and pedicels. 



4. L. hlrtum (hairy Field Pepperwwt), pouch ovate emargi- 

 nate winged glabrous, style nearly half as long as the pouch, 

 cauline leaves sagittate" toothed. E. B. t. 1803 (Thlaspi 

 hirlnm). 



HAB. Margins of fields and hedges. Near Elan tyre Priory, Dr. Brown. 

 Fl. June. 11 . ( $ , Hopk.} 



Six to eight inches high. Stems many from one root. Much resem- 

 bling the last, but whiter with the more abundant pubescence. 

 Stem and racemes hairy. Pod with, constantly, a much longer style, 

 and in all my specimens not only free from scales, but from hairi- 

 ness too. 



7. COCHLEARIA. 



l.C. officinalis (common Scurvy-grass)* pouch globose, radi- 

 cal leaves petiolate eordato-reniform entire or sinuated, cau- 

 line ones sessile oblong sinuated. Lightf. p. o42, and p. 344 

 (C. grcenlandica). E. #. t. 351, and /. 2403 (C. grcen- 

 landica). 



HAB. Rocks and muddy places by the sea-coast, as well as upon the 

 elevated mountains. Fl. May. Q 



Varying in height from six inches to a foot or more, much branched, 

 especially the base. Leaves succulent, more or less entire, those 

 of the stem semiamplexicaul with their generally toothed base. 

 Flowers white. I can see no difference whatever in the C. grccnkm- 

 dica ; for the sinuated and toothed or entire leaves are extremely 



- variable marks, and such as no reliance can be placed upon. 



2. C. anglica (English Scurvy -grass), pouch elliptical, radical 

 leaves petiolate cordate entire, cauline ones mostly sessile ob- 

 long more or less toothed near the base. Lightf. p. 344. E. 

 B. t. 552. 



HAB. Rocks of Inch Columb (Icolmkill), Slbbald. Fl. May. 0, 

 Smaller than the last and larger than the following, to which I think 

 it approaches too near. In some of the lower cauline leaves the two 

 teeth near the base form a complete delta ; and the pouch is very 



similar. 



o 2 



