TETRADYNAMIA. SILIQUSOA. Sifymbrium. 485. 



813. SISYMBRIUM. Silique gaping with valvelets 

 flraightifh. Calyx expanding. Corol 

 expanding. Crejs. 



* Silique s declining Jboft, 



Nojlurtium. 1. S. filiques declining, leaves feather'd : leaflets fome- 

 what hearted. JVater-crefs. 



five/ire. 4. S. filiques declining oblong - egg'd, leaflets lanced 

 faw'd. tvood. 



amphibium. 5. S, filiques declining oblong-egg'd, leaflets feather- 

 cleft faw'd. amphibious. 



pyfenaicum. 3. S. filiques rather egg'd, the inferiour leaves lyred, the 

 fuperiour twice - feather-cleft ftem - clafping, 

 ftyles thread-form. pyrenean. 



tanacetifolium.i.S. leaves feather'd: leaflets lanced gam- faw'd : the 

 outmoft confluent. tdnfey-leaved. 



tenuifolium. 6. S. leaves moft intire : the loweft thrice-feather-cleft, 

 the higheft intire. Jlendcr -leaved. 



* * Siliques fejjile axillary. 



fupinum. 8. S. leaves axillary fubfeflile folitary tooth - finuous. 



fupine. 



polycerati- 10. S. filiques axillary feflile awl'd aggregate, leaves 



urn. fcollop-tooth'd. many-horn d. 



burfifolium. 9. S. raceme iiexuous, leaves Jyred, ftem ereel: leafy. 



purfc-leaved. 



* * * Stem naked. 



murale. II. S. nearly Hem lefs, leaves lanced finous-faw'd fmooth^ 



ifh, fcapes ruggedilh afcending. wall, 



monenfe. 12. S. ftemiefs, leaves feather-tooth'd rather hairy, fcapes 



polifh'd. anglefia 



vimineum. 13. S. ftemlefs, leaves lyred polifh'd, fcapes afcending, 



flowers minute. twiggy, 



Barrelieri, 14. S. flem roundifh branchy, radical leaves *■ uncinate 



tooth'd hifpid. ofBarrdier. 



arenefwn. 15. S. ftem rather leafy branchy, leaves lyred right angle- 



tooth'd hifpid : hairs branchy. {and. 



valentinum. 16. S. ftem fimple erect, fmooth above, leaves lanced 



hifpid tooth'd before. valentia. 



* * * * With 



