222 



On Xanthium Canadense, 6, 1896. 

 On Ambrosia trifida, 6, 1896. 

 R(estelia lacerata (Sow.) Fr. Common. 



On Gratrrgvs sp., 6, 1896. 

 Z^romyces appendiculata (Pers.) Lev. Common. 



On Phaseolus divermfolius, 6, 1896. 

 Uroinyces caladii (Schw.) Farl. Common. 

 On Ariscemia triphyllum, 5, 1896. 

 On Arisiemia Dracontium, 6, 1896. 

 Uromyces Euphorhm (Schw.) C. & P. Common. 

 On Euphorbia dentala, 7, 1896. 

 On Euphorbia hype rici folia, 6, 1896. 

 Uromyces gaurina* (Pk.) 



The second stage or uredo stage of this species has been described by Peck in 

 the Botanical Gaz. IV as early as 1879 under the name Trichoba^sis gaurina, of 

 which he says that it is probable that the species is the second stage to some species 

 of Uromyces or Puccinia not yet known. I found the teleutospores July 25, 1896, on 

 the same host with uredo which correspond with those described by Peck. So I 

 take it that the form recently found belongs to what has been previously known 

 as Uredo gaurina, but must now be classed under the genus Uromyces. 

 On Gaura biennis, 7, 1896. 

 Uromyces Hoicei Pk. Common. 



On Asclepias incarnala, 10, 1896. 

 On Asclepias cornuti, 9, 1896. 

 Uromyces hedysari-paniculati (Schw.) Farl. Common. 

 On Desmodium Canadense, 6, 1896. 

 On Desmodium diellenii, 6, 1896. 

 Uromyces jtinci (Schw.) Tul. Common. 



On Juncus tenuis, 10, 1896. 

 Uromyces lespedezte (Schw.) Pk. Rare. 



On Lespedeza repens, 9, 1894. 

 Uromyces orobi (Per.) Wint. is rare. In only one locality could I find plants 

 affected with the fungus, and then only a very few leaves could be found bearing 

 rust. Plants not ten feet distant seemed to be perfectly free from, any infection. 

 On Vicia Americana, 10, 1896. 



-'Uredo son' scattered, brown; spores globose, finely eehinulate 19-22" w. by 2(>-26" 1.; 

 teleutosori dark brown, erumpent, roundish; spores sub-globose, ovate or oblong, vertex 

 strongly thickened with ii blunt-colored apiculus, smooth, 19-24." w. by 20-30," 1.; pedicels 

 once to three time? the length of the spore, hyaline. 



