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NEW YORK STATE MUSEUM 



HYPODERMEAE 



U STIL AGIN ACE AE 

 Ustilago Avenae (Pers.) Jens. 

 Oat fields. Wood farm. August. This fungus is parasitic On oats. 

 It lives in the oat plant till the panicles appear. Then the fungus makes 

 its presence known by developing its own dusty sooty black mass of 

 spores in the panicles where the grain or seed of the oats should appear. 

 It is an injurious fungus as it destroys many bushels of oats annually. Its 

 ravages however can easily be prevented by treating the seed oats by 

 the hot water process. This is simply soaking the seed about 10 minutes 

 in water kept at a temperature of 132 or 133 degrees F. The fungus is 

 commonly known as oat smut. 



UREDINACEAE 

 Uromyces Caladii (Schw.) Farl 

 Living leaves of Indian turnip. Indian pass trail, 

 aecidial form was found. 



Puccinia Prenanthis {Pers ) Fckl. 

 Living leaves of rattlesnake root, Nabalus albus. Wallface mountain 

 and Indian pass. June. Only the aecidial form was found. 



Puccinia Violae (Schum.) DC. 

 Living leaves of violets. Freemans Home. June. Only the aecidial 

 form was found. 



Puccinia pulchella Pk. 



Living leaves of fetid currant. Valley of the Ausable. Near the 

 Notch house. 



Puccinia Claytoniata (Schw.) 

 Living leaves of Carolina spring beauty. Old Keene road. June. 

 This is Puccinia Mariae- Wilsoni Clinton. The aecidial form was 

 described by Schweinitz under the name AEcidium claytoniatum. 



Puccinia Asteris Duby. 



Living leaves and generally the basal ones only of the large leaved 

 aster, A macrophyllus. Wood farm. August. 



P. Asteris purpurascens C. & P. 



Living leaves of mountain aster, A. acwninatus. Indian pass. 

 August. 



June. Only the 



