IOWA ACADEMY OF SCIENCES. 
213 
Bicuculla. 
285. B. cucullaria (L.) Millsp. {Dicentra cucullaria DC.) 
Common on wooded slopes. 
Adlumia. 
286. A. fungosa (Ait.) Greene. {A. cirrhosa Raf.) 
Escaped from the cemetery at Iowa Falls and 
more than holding its own. 
Capnoides. 
287. C. auremn (Wi]ld.) Kuntze. {Corydalis aurea 
Willd. ) Common in waste ground. 
CRUCIFERS. 
Thelypodium. 
288. T. integrifolium (Nutt.) Endl. Low woods; in- 
frequent. 
Lepidium. 
289. L. virginicum L. Abundant in waste ground. 
290. L . apetalum WAXdi . {L. intermedium With 
the preceding, but less common . 
291. L. sativum L. Rarely escaped. 
Thlaspi. 
292. T. arvense L. Along railroads; rare. 
Sisymbrium. 
293. S. officinale (L.) Scop. Abundant about houses and 
in open woods. 
294. S. altissimum L. Common along railroads. 
SiNAPTS. 
295. S. alba L. {Brassica alba Boiss.) Rarely escaped. 
Brassica. 
296. B. nigra (L.) Koch. Abundant in waste and culti- 
vated ground. 
297. B. arvensis (L.) B. S. P. ( B. sinapistrum Boiss). 
Abundant; but less so than the preceding. 
Raphanus. 
298. R. sativus L. Persisting about gardens for several 
years. 
