333 



typhlna; Peach twisis ; Pear (bark and fruit); Quince (fruit and leaf); 

 Tilia amcricnna; Moms alba; Vlmus americana ; ^ainhucus caiiadoisis; 

 Hamamclis virginiana and Crab apple (bark). 



With regard to tliis whole situation it may be said tliat the suggestion 

 made by Dr. Peck ('81)^ should have prevented any such confusions. He 

 states that DipJodla and Sphacropsis are merely form genera, and that 

 both fail in their chief distinction. Accordingly the oldest generic name 

 should be selected for species like this one, where spores are such tliat it 

 may be classed either as Hphacropsis or Diplodia, and further tlie sep- 

 aration of the two genera on the basis of the presence or absence of a 

 septum in tlie spores seems little warranted. It seems that Saccardo was 

 little justifled in changing the name Spliacropsis inalonim Berl^. to Phoma 

 inalonon (Berlc. ) Sacc, for it is quite possible that Berkeley described 

 an immature organism. It is quite common to find spores gi'eenish in 

 black rot of apples. After maturing they are brownish. 



The discussion of such a situation in regard to the name of a fungus 

 may seem somewhat unimportant, yet it serves as a good example of 

 some of the lack of tliorough investigation and the mere guessing at de- 

 tails, wliich lead to just such confusion. As yet the writer is not wlaolly 

 satisfied with any of the names. The types of several species will liave 

 to be carefully compared before any name can be accepted. 



In concluding this phase of the subject there are listed a number of 

 species with citations to literature, vphich it seems to the writer must be 

 considered in determining the correct name of this fungus, and which 

 names should appear in synouomy. 



Sphacrla SitmacJii Schw. 

 Trans. Amer. Phil. Soc. n. s. 4:205. 1834. 



Sphaeria rhoina Schw. 

 Trans. Amer. Phil. Soc. n. s. 4:218. 1834. 



Sphaeria pomorum Schw. 

 Trans. Amer. Phil. Soc. n. s. 4:219. 1834. 



Sphaeria malorum Berk. 

 Eng. Flora. 5:257-258. 1836. 



Podosporium demersum Bon. 

 Handb. 1851 :227. 



I '81. Peck, C. H. Report of the Botanist, N. Y. State Mus. Nat. Hist. 34:36. 1881. 



