271 
Nov. 1905 ] Notes frovi Mycological Literature 
proposing again the new genus Pseudoperonosporci. This will 
naturally be the publication to be cited, for the description, in 
the article just reviewed was entirely in Russian. Clinton 2 with, 
it seems, not sufficient ground for the action, refuses to recog¬ 
nize this name and raises to generic rank the subgenus Perono- 
plasmopara, created by Berlese 3 for this fungus. Although it is 
to be regretted that Rostovtsev did not accept this subgeneric 
name and raise it to generic rank, there is no nomenclatorial 
law making a generic name invalid in case the subgeneric name 
is ignored, so that the name Pseudoperonospora will have to 
stand. Clinton points out, with evident correctness, that the 
differences upon which the variety Tweriensis was based occur 
also in America, depending upon the age and host of the fungus, 
so that this variety can not be considered as valid. 
It is of great interest that Rostovtsev finds that the disease 
has been present in Russia from time immemorial, the effects be¬ 
ing recognized (drying of leaves, and early death of the vine) 
but the cause being unknown until 1902. 
U. S. Department of Agriculture. 
2 Clinton, G P. Downy Mildew, or Blight, Peronoplasmopara 
cubensis (B. & C.), Clint., of Musk Melons and Cucumbers. Report of 
the Conn Agr. Expt. Sta. for 1904. Part IV. Report of the Station 
Botanist: 329-362, pi. 29-31. 1904. 
3 Berlese, A. N. Saggio di une Monografia delle Peronosporaceae. 
Revista di Patologia Vegetale. 9:1-126. 1902. 
NOTES FROM MYCOLOGICAL LITERATURE XVII. 
W. A. KELLERMAN. 
The mycological articles in Annales Mycologici, Vol. 
II No. 5, September 1904, are as follows: Holway, E. W. D., 
Mexican Uredineae; Bubak, Prof. Dr. Fr., Neue oder kritische 
Pilze; Rick, J., Ueber einige auf Bambusarten wachsende tro- 
pische Hypocreaceen; Rick, Fungi austro-americani exs. Fasc, I; 
Cavara, Fr., A propos d’une remarque de Mr. le Dr. Franz v. 
Hohnel; Petri, L., Sul valore diagnostico del capillizio nel genere 
“Tylostoma” Pers.; Salmon, Ernest S., On the identity of Ovu- 
lariopsis Patouillard & Hariot with the conidial stage of Phyl- 
lactinia Lev. 
Zeitschrift fuer Pflanzenkrankheiten, XIV Band, 
1904, contains the following which mycologists will find of inter¬ 
est, namely, C. G. Bjorkenheim, Beitrage zur Kenntnis des Pilzes 
in den Wurzelanschwellungen von Alnus incana (hierzu Tafel 
