40 
IOWA ACADEMY OF SCIENCES 
MENISPEEMACEAE. 
Menispermum. 
364. M, canadense L. Abundant in woods and along streams. 
i 
PAPAVERACEAE. 
Sanguinaria. 
365. 8. canadensis K Very abundant in rich woods. 
Bicuculla. 
366. B. cucuUaria (L.) Millsp. Very abundant. ^ 
367. B. canadensis (Goldie) Millsp. Rare in rich woods. 
Adlumia. 
368. A. fungcsa (Ait.) Greene. Sparingly escaped from gardens. 
Capnoides. 
369. (7. aureum (Willd.) Kuntze. Abundant in sandy soil. 
370. C. curvisiJiqum (Engelm.) Kuntze. Rare. 
cruciferae. 
Leptdium. 
371. L. virginicum L. Scarce in waste places. 
372. L. apetalum Willd. Abundant in fields and along roadsides. 
Thlaspi. 
373. T. arvense L. Scarce in waste places. ^ 
Sisymbrium. 
374. /S. offlcinale (L.) Scop. Abundant. 
375. 8. altissimum L. Plenty. 
Brassica. 
376. B. nigra (L.) Koch. Abundant in fields and waste places. 
377. B. arvensis (L.) B. S. P. Scarcer than above. 
378. B. campestris (L). Scarce along railway right-of-way. 
Roripa. 
379. R. palustris (L.) Bess. Abundant in swamps and marshes. 
380. R. hispida (Desv) Britton. Not so common. 
381. R. nasturtium (L.) Rusby. Rather scarce in brooks and 
streams. 
382. R, armoracia (L.) A. S. Hitchcock. Escaped from gardens. 
Card AMINE. 
383. C. pennsylvanica Muhl. Plenty in moist soil. 
384. C. flexuosa With. Scarce in wet woods. 
385. C. hulbosa (Schreb.) B. S .P. Common in swamps and marshes. 
Dent ARIA. 
386. D, laciniata Muhl. Abundant in rich woods. 
Bursa. 
387. B. bursa-pastoris (L.) Britton. Abundant everywhere. 
Gamelina. 
388. sativa (L.) Crantz. Scarce in waste places. 
