30 6. CRUCIFER.E. 



20. ARMORACIA Rupp. 



1. A. rusticana (Rupp.) ; roots long and thick, radical 1. ob- 

 long crenate-serrate on long stalks, stem-1. elongate-lanceolate 

 incise-serrate or entire subsessile, pet. (white) twice as long as 

 cal., pouch oval "4-seeded," " stigma peltate." Cochlearia Ar- 

 moracia (L.) E. B. 2323. R. ii. 17. St. 23 feet high. Roots 

 running deep into the ground. Wastes and pastures near Swan- 

 sea, abundant. Mr. Eorrer. Elsewhere, scarcely wild. P. V. 

 Horse Radish. 



2. A. amphibia (Koch); root fibrous, 1. oblong narrowed at 

 both ends serrate or pinnatifid, pet. (yellow) twice as long as the 

 cal., pouch oval, " stigma capitate." E. B. 1840. Nasturtium 

 ed. 2. St. 2 3ft. high. Submersed 1. deeply pinnatifid. Ped. 

 usually deflexed. Watery places. P. VI. VIII. 



Tribe V. Camelineas. 

 21. CAMELINA Crantz. Gold-of-pleasure. 



[C.f&tida (Fr.) ; pouches obovate inflated flaccid. In fields 

 of flax and corn, introduced but not naturalized. I have not 

 met with C. sylvestris (Fr.) nor C. sativa (Fr.).] 



Tribe VI. Vellea. 



22. VELLA Linn. 



.[1. V. annua (L.) ; " 1. doubly pinnatifid, pouches deflexed." 

 E. B. 1442. Found in the time of Ray on Salisbury Plain, 

 but has not since been noticed.- A. VI.] E. 



Suborder III. Angustisepta. Tribe VII. Thlaspidece. 



23. THLASPI X Linn. Penny Cress. 



1. T. arvense (L.) ; fruitbearing raceme elongate, pouch orbi- 

 cular with a broad longitudinal wing, seeds concentrically rugose 

 and striated 5 6 in each cell, stem-1. oblong sagittate toothed. 

 E.B. 165.9. R. ii. 5. Pouch very large with remarkably broad 

 wings. Stigma subsessile. St. often a foot high, Fields and 

 road-sides. A. V. VII. Penny Cress. 



2. T. perfoliatum (L.) ; fruitbearing raceme elongate, pouch 

 obcordate broadly winged above, style very short included within 



