-58 NATURAL HISTORY BULLETIN. 



P- 353- 

 C. gravida Bailey ; Lebanon, July n, 1898, Ball. 



P. 354- 



C. vulpinoidea Mich.; Ames, June 20, 1898, Minerva. June, 



1898, Muscatine, July, 1898, and Vinton, June, 1898, Ball; 



Davenport, Forest City, July 18, 1896, Rock Rapids, Lyon 



count\ r . Aug. 5. 1898. and Mason City, July 6, 1896, Shimck. 



P- 354- 

 C. xanthocarpa Bicknell. What I take to he this species 

 was collected by Prof. Shimek at Cedar Rapids, June 7, 1894. 

 The lower branch is one in. long; otherwise much like the type. 



P. 355- 

 C. rosea Schk.; Cedar Rapids, May 15, 1896. Shimck; Gar- 

 win, June 29, 1898, Ball. 



P. 356. 

 C. rosea radiata Dew ; Lebanon, July n, 1898, Bull & 

 Sample; Ames, June, 1898, nearly this. Ball & Sample. 



P. 356. 

 C. spar ganio ides Muhl.; Iowa City, 1894. Shimck; Ames, 

 June 3, 1898, Ball. 



P- 356. 

 C. ccphalophora Muhl.; Ames, June, 1898, Ball <£■ Sample. 



P- 358. 

 C. maskingumensis Schwein.; Muscatine, Sept., 1896. 

 Shimck. 



P. 359- 

 C. tribuloides Wahl.; Ames, June, 1898. Ball. Prof. Shimek 

 collected near Mason City a form intermediate between this 

 and C. tribuloides bebbii. 



P. 359- 

 C. tribuloides moniliformis (Tuck.) Britton; Ames, June 20, 



1898, Ball. 



P. 360. 



C. sroparia Schk.; Vinton. June 29, 1898, Ball. 



