135 



147. Uromyces houstoniatus (Schw.) Sheldon, Torreya 9:55. 1909. 



Caeonia (Aecidinm) hovstoniatum Schw. Trans. Am. Phil. Soc. 

 II. 4:293. 1832. 

 On Eubiaceae: 



Houstonia caerulea L., Bennettsville, Clarke County, May 30, 1917, 

 C. C. Deam 23260. 



This species has uredinia and telia on Sisyrinchium sp., culture work 

 having been conducted first by Sheldon (1. c.) and later confirmed by 

 Arthur (Mycol. 1:237. 1909). The telia have not yet been collected in 

 Indiana. 



148. Uromyces magnatus Arth. Mycologia 9:311. 1917. 



Aecidinm magnatuni Ai'th. Bull. Torrey Club 28:664. 1901. 

 On Convallariaceae : 



Polygonatum biflorum (Walt.) Ell., Ontario, Lagrange County, 

 June 17, 1917, C. C. Deam 23642. 



This aecidium has not before been reported from Indiana. It has 

 recently been shown by Arthur (1. c.) to be connected with uredinia 

 and telia on Spartina formerly included with Uromyces acuminatus 

 Arth. (Nigredo Polemonii (Pk.) Arth.). The telia are indistinguishable 

 from the collective species which has aecia also on various members of 

 the Caryophyllaceae, Primulaceae and Polemoniaceae. This form is 

 here listed under the distinctive name as the aeciospores are considerably 

 larger than the forms on other aecial hosts belonging to the families 

 mentioned above. 



Telia have been collected in Indiana on Sjyartina Micliauxiana and 

 reported in previous lists under the collective name. Aecia are also 

 known on Polemonium rep tans. 



149. Uromyces seditiosus Kern, Torreya 11:212. 1911. 

 On PoACEAE: 



Aristida raimosissima Engelm., Washington, Daviess Co., September 

 29, 1910, C. C. Deam 7618; Elberfeld, Warrick County, October 4, 1916, 

 H. S. Jackson. 



Aecia occur on various species of Plantago but have not yet been 

 collected in Indiana. 



