2o6 The Ohio Naturalist. [Vol. II, No. 4, 



17. Aecidium peckii DeToni. 



Aecidium oenotherae Peck. 



On Onagra biennis ( L. ) Scop. 



Columbus, Ohio. June 5, 1901. 



Coll. W. A. Kellernian. 



" Aecidium oenotherae n. sp. Spots orbicular, scarcely thick- 

 ened, reddish purple, sometimes stained with yellow; peridia short, 

 crowded, generally with a small, free central space; spores pale 

 orange, subglobose, small, ooVi/ i" diameter." Chas. H. Peck, 

 Report on the Slate Cabinet, State of New York, 23 : 6t). 1872. 



18. Gloeosporium equiseti E. 8c E. 



On Equisetum robustuni R. Br. 



lyOgan, Hocknig Co., Ohio. Oct. 8, 1S94. 



Coll. W. A. Kellerman. 



"Gloeosporium equiseti E. & E. Acervuli large (i mm. in 

 diameter), subconfluent, covered by the blackened cuticle, which 

 soon whitens out, except around the margin ; spores C3'lindrical, 

 slightly curved, multinucleate, 25-35 x 3 nmini., expelled in pale 

 amber-colored masses." Journal of Mycology, 4 :52. 



19. Gymnoconia interstitialis (Schlt.) Lagh. 



Caeoma interstitiale Schlecht. ; Aecidium nitens Schw. 



Uredospores only. 



On Rubus nigrobaccus Bailey. 



Columbus, Ohio. June 2, 1901. 



Coll. W. A. Kellerman. 



"Caeoma (Uredo) interstitiale n. sp. Folia, quae infestat 

 hoc Caeoma, caeteris, hand affectis, remanent niulto minora et 

 minus evoluta. Maculas in superior! foliorum pagina in planta 

 sicca conspicere nequeo. Aceivi, in pagina inferiore in nervorum 

 interstitiis positi, oblongi, lineares, confluentes, fere totum inter- 

 stitium occupantes, prius parum elevati, convexiusculi, epidennide 

 tecti, quae postea, rima longitudinali irregulariter rumpens, pul- 

 vereni, in siccatis luteuni, liberum reddit ; epidermidis vero frag- 

 menta ad latera undulatim resistunt. Sporidia irregularia, rotund- 

 ata, effoeta p?llucida, .^aepius lineis obscuris varieintricatisimpleta, 

 parum inter se cohaerentia." Schlechtendal, in Nees von Esenl)eck, 

 Horae Physicae Herolinensis, 96. 1.S20. 



" Aecidium nitens Sz. A. simplex elongatum peridiis maximis 

 flavis splendentibus ; demuni irregulariter ruptis, pulvere aurantio. 



" In foliis, petiolis et ramis junioribus Rubi slrigosi frequens. 

 Plantas totius regionis ita investit perenne redux, ut tandem onniino 

 destruat ; aestate. Ad Uredines accedit ; sed peridiuni distinctum 

 habet. Peridia demuni inter se confluunt." L. D. de Schweinitz, 

 Synopsis Fungorum Carolinae Superiolis (excerpta), p. 43. No. 

 458. 1822. (Schrift. d. Nat. Gesellschaft zu Leipzig. ) 



" Caeoma, Aecidium, luminatum, L. v. S. Folia quae cum 

 tota planta ab hoc Aecidia infestantur (semper quidem ejusdem 

 aunij omnino degcnerata." L. D. de Schweinitz, Transactions of 

 the American Philosophical Society, Philadelphia, New Series, 

 4 : 293. 1834. 



