122 NATURAL HISTORY BULLETIN. 



.^. phcUos Linn., Willow Oak. 



.^. c'lncrea Michx., Upland Willow Oak. 



^. douglasst. 



J^. agrifolia. 



J^. Icerifolia. 



^. aquatica Walt. 



^. rubra Linn. 



^. nigra Linn. 



Castanopsis sp.? 



Taphrina virginica Sadebeck tt Seyiiio/tr causing spo's on leaves of — ■ 

 Osfrva firgi/iica Willd., American Hornbeam or Ironwood. 



Taphrixa ulmi (Fuck.) Johans. causing spots on leaves of — 

 Ulmus aincr'icana Linn., American or White Elm. 



Magxusiella potestill.e {Farl.) Sadcb. causing spots on leaves of — 

 PotcntiUa ca>i:idensis Linn., Wild Cinquefoil. 



>L\GNL"SIELL.\ flava {Fiirl.) Sadeb. causing spots on leaves of — 

 Betuhi fjpid'tfoUa Ait., American White Birch. 



INQUIREND.E. 



TaPHRINA EXTENSA (Prck) SaCC. OU 



^uercns niacrocarpa Mich. 



Taphrixa rcbrobrlxnea [Peck') Sdcc. on — 

 J^ucrcus rubra L. 



Taphrixa betulixa on leaves of — 

 Bcttda odor at a. 



Taphrixa lethifera [Feck) Sacc. on leaves of — 

 Acer spicafuiii. 



I am under great obligations to Prof. Geo. F. Atkinson for 

 the gift of specimens of the new species described in his recent 

 ••Contribution to the Knowledge of the Prunicolous Exoascea? 

 of the United States": to include them within the main body 

 of this paper would have required more time for critical stud}' 

 than was at my command. He also sent me leaves of Pofiihis 

 monilifcra Ait. affected by T. aiirea and Carpinus americana 

 Michx.. from Auburn. Ala., upon which occurs a new species 

 as described in '-Notes on some Exoascea? of the United 

 States" in Bull. Torrey Bot. Club, Vol. 21, No. 8, p. 372-380, 

 August, 1894. The latter species Exoasciis australis, is of 

 considerable interest as being the first number of the group re- 

 ported upon this host in America, and quite different in several 

 respects from E. carpintis, East, upon Carpimis bctuhis, Linn. 



