30 6. CRUCIFERiE. 



20. Armoracia Bupp. 



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. 2—3 feet high. Roots 

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

 sea, abundant. Mr. Borrer. 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 — 3 ft. high. Submersed 1. deeply pinnatifid. Ped. 

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



Tribe V, Camelineee. 

 21. Camelina Crantz. Gold-of-pleasure. 



\C.fcEtida{¥r.); pouches obovate inflated flaccid. Infields 

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

 met with C. sylvestris (Ft.) 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 Salisbm-y Plain, 

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



Suborder III. Angustisepta. Tribe VII. Thlaspidece. 

 23. Thlaspi 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. 1659. 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, ^omcA 

 obcordate broadly winged above, style very short included within 



