Davis—Notes on Parasitic Fungi in Wisconsin — X. 273 
name. This fall I took the matter up and find that it can not be 
referred to Leptothyrium but that it agrees with Allescher’s de¬ 
scription of Asteroma gentianae Fckl. (Bahh. Krypt. fl. Pilze: 
7 : 464). I have seen no specimens of Sphaeria gentianaecola DC., 
Xyloma gentianaecola DC., Depazea gentianaecola (DC.) Fr. and 
do not know their relationship to our parasite. Neither have I 
seen a specimen of Fuckel’s Asteroma gentianae. As matters 
stand now, I am inclined to use Fuckel’s name provisionally, as 
the fungus has the characters of Asteroma. [In 1922 this was 
collected on Gentiana puherula at Arena. Sometimes the proximal 
portion of the pycnidial wall is thin but distinct while the distal 
portion is thick and black while other pycnidia have a thick, black 
wall throughout.] 
Fusidium pteridis Kalchbr. was recorded in Trelease’s Prelimi¬ 
nary List of parasitic Fungi of Wisconsin and was copied there¬ 
from into the provisional list. In ‘‘Notes” V, p. 701, a parasite of 
Pteris was recorded under the name Gloeosporium leptospermum 
Pk. which is the same fungus. Gloeosporium pteridis Hark, as 
represented by Griffith’s West American Fungi 324 and 324a and 
Jackson’s No. 1688 is the same species. The synonymy is 
Fusidium pteridis Kalchbr. 
Gloeosporium pteridis Hark. 
Gloeosporium leptospermum Pk. 
Gloeosporium pteridis (Kalchbr.) Kabat & Bubak. 
It is said to be a sporuligerous state of Cryptomyces pteridis (Eeb.) 
Rehm. (Gloeosporium ohtegens Syd. Ann. Mycol. 2:172), C. F. 
Baker, Pacific Slope Fungi 3757 can hardly be other than a pro¬ 
fusely developed state of the same parasite. Another parasite of 
Pteris was recorded in the provisional list under the name Mars- 
sonina necans (E. & E.) Magn. The sporules of this fungus are 
developed in a pycnidium and it is referable to Ascochyta and does 
not differ from Ascochyta pteridis Bres. as represented in Krieger’s 
Fungi Saxonici 989. The synonymy is: 
Gloeosporium necans Ell. & Evht. Journ. Mycol. 4 : 104, (Octo¬ 
ber, 1888). 
Marsonia necans (E. & E.) Sacc. 
Marssonina necans (E. & E.) Magn. 
