96 SALMON: SUPPLEMENTARY 
pfriemlichen vom Mycel vollig getrennten Anhangsel, durch die 
am Scheitel nicht verdickten, 5-6 Sporen enthaltenden Asken, 
sowie durch die mit einem Tropfen versehenen, im Innern nicht 
gekérnelten Sporen gut verschieden.” Of the character here 
given, the completely colorless mycelium would if constant be the 
most important, as separating the plant from S. /anestris, but this 
distinctive character certainly does not hold good. Although the 
specimen is undoubtedly for the most part immature, as is shown 
by the fact that the ascus of most of the perithecia is found, on 
being pressed out, to be still completely enveloped in the separating 
inner wall of the perithecium. But even in this stage some of the 
hyphae of the mycelium, intermixed with colorless ones, show 4 
decided brown color under the microscope. Moreover, in one 
corner of a leaf in the specimen sent, a small patch of mycelium 
has turned completely brown, and presents all the appearances of 
that of S. /anestris. The appendages of the perithecium in “5. 
Kusanoi” are in most cases quite rudimentary or even absent, 
occasionally, however, they equal or slightly exceed, in length the 
diameter of the perithecium. The asci are 6-8-spored; the wall 
becomes thin towards the apex of the ascus (as is shown, ¢. $ a 
Fig. 118 of monograph). The complete separation of the inner 
wall of the perithecium from the outer is a characteristic featur 
S. danestris (see monograph, p. 75). 
Since writing the above, I have received another example of 
this Japanese Sphaerotheca on Quercus glandulifera, from Professot 
Shotaro Hori, collected at Mt. Tsukuba (coll. T. Nishida, Nov. 7 
1900). In this specimen, although the fungus is immature, the 
mycelium has everywhere taken a decided tinge of brown. 
S. lanestris has been known hitherto only from the United 
States, where it occurs on six species of Quercus in the Souther™ 
Middle and Western States. Its occurrence in Japan is of great 
interest, adding as it does another species to the list of mildews 
common to North America and Japan (see ‘ Erysiphaceae ° 
Japan” (68, p. 442). 
Uncinuza saticis (DC.) Wint. (Monograph, p. 81) 
Exsicc. add: *Linhart, Fung. hungar. 78; *Rehm, ascomycel 
549b; * FI. exsicc. austro-hungar. 3177; * Krypt. exsicc. (Mus. 
Pal. Vind.) 121 ; Shear, New York Fungi 140 (in herb. Jaczewski): 
