176 ROCHESTER ACADEMY OF SCIEXCE. 



Sect. IV. HYALODIDYM.E Sacc. 



Sporidia ovoid, oblong or fusoid, uniseptate, hyaline or sub- 

 hyaline. 



Mycosph.erella Johanson 1S84. 



268. Mycosphaereila punctiformis (Pers. ) Johanson. Felt- 

 gen, 864. SphcErella, N. A. Pyr. , p. 265. On old leaves. 



269. Mycosphaereila asterinoides (E. & E. ). Sphcrrella, 

 Journal of Mycology, IV., p. 98 and N. A. Pyr. p. 281. Peck, 54 

 Rep., p. 157. On dead stems of wild teazel, Dipsacics, May. The 

 outline of the sporidia reminds one of a foot-print. Originally 

 collected at Clyde by O. F. Cook, Jr. 



270. Mycosphaereila verbascicola (Schw. ) Spermogonial 

 stage found on dead stems of Verbasciun thapsiis. 



DiDYMELLA Saccardo 1878. 



271. Didymella rauii (E. & E. ) Sacc. N. A. Pyr., p. 316. 

 Sphceria rauii E. & E. , in Bull. Torn Bot. Club, X. p. 90. Fairman. 

 Notes on New or Rare Fungi from Western New York, Jour. Mycol. , 

 v., p. 79. On dead stems of wild rose. 



272. Didymella sp. Found on dead branches of spice bush. 

 Benzoin. Journal of Mycology, V., p. 79. Sporidia fusoid, hyaline, 

 quadrinucleate, 18-20 x 4-5 fi. Originally designated in a personal 

 communication to us as Didymella Under (C E. & E. , but we find no 

 publication. 



Bertia DeNotaris 1844. 



273. Bertia moriformis (Tode) DeNotaris. Sphicria inori- 

 f or mis T ode., 1841. Peck, 24 Rep., p. 104. Bertia m., N. A. Pyr., 

 p. 180 and Feltgen No. 993. On decaying wood of maple, Ridgeway, 

 N. Y. In N. A. Pyr. reported as having been found at Canandaigua, 

 N. Y., by Edgar Brown on old Didalea nnicolor. Sartwell also 

 found it at an early date in this state. 



Hercospora Tulasne. 



274. Hercospora tiliae (Fr. ) Tul. Sphccria tilice in Peck, 

 24 Rep., p. 99? N. A. Pyr., p. 525, as Melanconis tiliacea (Ell.). 

 Valsaria tilicE DeNot. , sec. Feltgen, No. 512. We have specimens 



from Prof. John Dearness of London, Ontario, which are the same as 

 our fungi. On dead Tilia, basswood, Oct., 1900. 



