234 DAVENPORT ACADEMY OF SCIENCES. 



Cacalia, L. Indian Plantain. 



446. C. suaveolens, L. 



Banks of creeks along Cedar River ; infrequent. 



447. C. re/iiformis, Muhl. 



Wild Cat Den; Cedar T'w'p.; rare. 



448. C. atriplicifolia, L. 

 Borders of woods ; frequent. 



449. C. tuberosa, Nutt. 



Wet prairies ; common. 

 Erechtites, Raf. 



450. E. hieracifolia, Raf. Fireweed. 



Moist woods and waste places ; common. 

 Arctium, L. Burdock. 



451. A. Lappa, L. 



Waste places ; common. 



452. A. Lappa, L., var. majus, Gray. 

 Eldridge ; apparently rare. 



Cnicus, Tourn. 



453. C. lanceolatus, Hoffm. 



Pastures and waste places ; common. 



454. C. undulatus, Gray. 



Railroad track near Montpelier ; a single plant. 



455. C. altissimus, VVilld. 



Fields and open woods ; infrequent. 



456. C altissimus, Willd., var. discolor, Gray. 

 Common. 



457. C Hillii, Canby. Garden and Forest, March 4, 1891 



Dry prairies, pastures and open woodlands ; infrequent. Al- 

 though found in various localities within our limits, it 

 seems to be most frequent in dry sandy soil along Cedar 

 and Wapsipinicon Rivers. See plate and description. 



458. C. arvensis, Hoffm. Canada Thistle. 

 Muscatine, Moscow, Valley City ; rare. 



Krigia, Schreber. 



459. K. amplexicaulis , Nutt. 

 Rich woods ; infrequent. 



Cichorium, Tourn. Chicory. 



460. C. Intybus, L. 

 Roadsides ; frequent. 



