274 Wisconsin Academy of Sciences^ Arts, and Letters. 
Ascochyta pteridis Bres. Hedwigia, 1894. 
Ascochyta necans (E. & E.) n. comb. 
In specimens of Bamularia desmodii Cke. on Dcsmodium illino- 
ense the penicillate conidiophoral fasciculi sometimes exceed lOOfi 
in length. 
In examining a collection of Cerosporella cana Sacc. on Erigeron 
annuus it was observed that the conidiophores ranged up to 100/^ 
in length. 
Specimens on leaves of Crataegus collected in 1890 were re¬ 
ferred to Mr. J. B. Ellis for determination who reported as follows: 
‘‘9039. Phleospora oxyacanthae (Kze. & Schm.) I think it must 
be, but your specimens are much better than any I have in my 
European collections. ’ ’ At the close of the letter he wrote: “ I have 
had to examine the things in great haste but I think you will find 
them correct.^’ In the Supplementary List the fungus was re¬ 
corded under this name and carried from there to the Provisional 
List where by a slip the specific name was given as “crataegi”. 
This was corrected in “Notes” III p. 254 and some remarks on the 
character of the parasite added which indicated that it could not 
be a Phleospora. To the notes there given, I would add that in 
some specimens the conidia have divided at' some of the septa re¬ 
sulting in shorter conidia which sometimes becomes thicker, 
15-45x3-7/x. This is quite different from Phleospora oxyacanthae 
(Kze. & Schm.) Wallr., but appears to be Cercosporella mirahilis 
Pk., for a specimen of which I am indebted to Dr. House which, 
however, lacks the differentiated conidiophores of Cercosporella. 
The first Wisconsin collection of Cercospora on Smilax was made 
at Racine. It was a form with small spots and preponderance of 
the dark border and was referred to Cercospora mississippiensis 
Tracy & Earle. Subsequent collections lead me to believe that 
there is but one species on Smilax in Wisconsin and that it is 
C. smilacis Thuem., as described and figured by Peck {33d Report, 
p. 29, figs. 1-3). In different collections the spots vary from 1 to 
8 mm. in diameter, the border varies in width and intensity of 
color, the conidiophores are longer or shorter (30-83x4|u) and the 
conidia are variable in size (30-115x4-5/x) and depth of color. 
They may be attenuate or subcylindrical and obtuse and, with the 
conidiophores, vary in septation. Fungi Columhiani 2208 labeled 
Cercospora mississippiensis Tracy & Earle I have referred to C. 
