IOWA ACADEMY OP SCIENCES. 
245 
CUCURBITACEJE. 
Micrampelxs Raf. Wild Balsam-apple. 
506. M. lobata (Michx.) Greene. (. Echinocystis lobata 
Torr & Gray.) Common in woods and along 
streams, climbing over low bushes. 
CAMPANULACEiE. 
Campanula L. 
507. C. aparinoides Pursh. Marsh Bellflower. Frequent 
in marshes. 
508. C. americana L. Tall Bellflower. Frequent in 
low woods. 
Lobelia L. 
509. L. syphilitica L. Great Lobelia. Common on 
low prairies. 
510. L. spicata hirtella A. Gray. Very common on 
low prairies. 
CICHORIACE^E. 
Taraxacum Hall. 
511. T. taraxacum (L.) Karst. ( T .. dens-leonis Desf.; 
T. officinale Weber.) Common, but probably 
introduced. 
Sonchus L. 
512. 8. asper (L.) All. Streets of Armstrong; adven- 
tive from Europe. 
Lactuca L. 
513. L. scariola L. A native of Europe, and but lately 
introduced into our country. 
514. L. ludoviciana (Nutt.) DC. Common on low 
prairies. The pinkish flowers rarely opening. 
515. L. pulchella (Pursh) DC. A recent introduction 
from the Northwest. 
Lygodesmia D. Don. 
516. L.juncea (Pursh.) Don. Frequent on dry knolls. 
Nothocalais Greene. 
517. N\ cuspidata (Pursh) Greene. ( Troximon cuspida- 
tum Pursh.) Frequent on hillsides, especially 
near streams. 
