42 
moist climate with frequentshowers, is remarkable as coming from ajfiace 
of scanty rain-fall and long summer droughts. The author adopts for 
his classification that first used by Schroeter and repeated by Berlese 
and De Toni in Saccardo’s Sylloge Fungorum, giving for convenience 
translations of the descriptions of family, genera, and sub-genera. 
Two new species, Peronospora hedeomce , K. & S., P. cynoglossi , Burrill, 
and anew variety of the latter, P. cynoglossi , var. cchinospermi , Swingle, 
are quite fully described 5 measurements of 100 conidia and 25 conidio- 
phores being given to establish the authenticity of the variety. Al¬ 
though it is to be regretted that there are no remarks upon the relation 
of this family to the atmospheric humidity it is interesting to note that 
the author finds only the following species as passing the winter in seed¬ 
ing plants: P. arenaricc , var. macrospora , P. Arthuri, P. corydalis , P.para¬ 
sitica, P. hedeomce , and P. Candida. 
The reference to an examination of every specimen for oospores as 
well as the carefully prepared synonomy show the work to be of the 
highest order. One or two changes in the authorities of some of the 
common species may attract attention but will be found to be well sup¬ 
ported by the law of priority, such as Cystopus amaranti , (Scliw.) Berk 
and Peronospora parasitica, (Pers.) Fries. 
The addition of the localities from whence specimens have been ob¬ 
tained together with other convenient helps make the paper a very 
valuable one to State collectors.—D. G. F. 
INDEX TO NORTH AMERICAN MYCOLOGICAL LITERATURE. 
By David G. Fairchild.* 
1. Dudley, W. It. Notes on investigations now in progress (with fig¬ 
ures). Second Annual Report of Cornell Ag. Ex. Sta., 1889. Issued 
February 15, 1890. I. The onion mold ( Peronospora Schleideniana , 
DBy.). II. Anthracnose of currants (Glceosporium rihis, (Lib.) Mont, 
and Desm.). III. Leaf-blight of quince and pear (Entomosporium 
maculatum , L 6 v.) 
*In addition to the reviews of recent foreign articles as published in the past we 
propose in the future to give an index to the North American Mycological Literature, 
endeavoring so far as possible to bring the information down to the time each issue 
of the Journal goes to print. In order to facilitate the work we shall be greatly 
obliged it the botanists will give us notice of any articles of a mycological nature 
contributed by them to other than the current scientific publications; and also in giv¬ 
ing such information to state the oxact date of publication. As Experiment Station 
bulletins and annual reports are seldom dated exactly, it will bo a great convenience if 
botanists will kindly state iu sending their reports to us the time at which they were 
ready for distribution. The work will be iu charge of Mr. David G. Fairchild to 
whom all publications and communications bearing upon the subject should be ad¬ 
dressed.—B. T. G. 
