221 



On Panicum capillare, 9, 1896. 

 Puccinia prenanthis (Per.) Fhll. Very rare. 



On Prenanthes alba, 5, 1895 ( Golden j. 

 Puccinia podophylli Schw. Common. 



On Podophyllum peltatum, 6, 1896. 

 Puccinia polygoni-amphibii Pers. Common. 



On Polygonum erectum, 6, 1896. 

 Puccinia Rubiyo-vera (DC.) Wint. Common. 

 On Glumes of Rye, 7, 1889 (Arthur). 

 On Elymus virginicus, 7, 1896. 

 Puccinia Spornboli Arth. P'ound on Sporobolus cryptandru.<, differs some from 

 the form found on S. heterolepsis. On the former the spores are larger, usually 

 constricted at septa, pedicels much longer, generally two or three times the length 

 of the spore, and slightly tinted. The one-celled teleutospores spoken of in the 

 original description were not present in specimen examined, probably due either 

 to the different host species or more mature state of material. The grass is found 

 in sandy places in great abundance. The leaves and stems are usually entirely 

 covered with the rust, causing the leaves to curl. 

 On Sporobolus cryptandrus, 4, 1896. 

 Puccinia triodin Ell. and Barth. Has been until recently classed under Puce, 

 emaevlata Schw., and has probably been reported as that species, but there are some 

 differences existing along with the different hosts, making it certainly justifiable 

 in separating the forms. 



The host plant is found in dry, sandy soil, and the rust is very abundant, the 

 sori usually covering the whole upper surface of the leaves. All plants observed 

 were badly infected with the fungus. There are some differences in the teleuto- 

 spores growing upon the different species of Triodia, mainly in size and shape of 

 spores. 



On Triodia se.'<lerioides, 3, 1896. 

 Puccinia tenuis Burrill. Rare. 



On Eupatorium ageratoides, 5, 1896. 

 Puccinia tanaceti DC. Common. 



On Helianthus grosse-serratus, 6, 1896. 

 Puccinia vulpinoides D. & H. Eare. 



On Carex vulpinoides, 11, 1888 (Bolleyj. 

 Puccinia windsoricc Schw. Very common. 



On Muhlenbergia sylvatica, 9, 1896. 

 Puccinia xanihii Schw. Verv common. 



