90 SALMON: SUPPLEMENTARY 
following diagnosis (I am indebted to Professor A. Magocsy- . 
Dietz for the translation of the Hungarian): ‘ S. microcarpa nov. 
spec. Mycelium spinnwebartig, weiss. Perithecien zerstreut, sehr 
winzig, kugelig, endlich schwarz, mit einem kugligen Ascus. 
Die Wand des Ascus ist sehr diinn auf der sich papillés erhe- 
benden Spitze. Unter dem Ascus, entgegengesetzt dem Scheitel, 
sitzt ein Discus mit kuchenartiger Gestalt, von welchem der Ascus 
sich schwer loslost. In dem Ascus befinden sich 6-8 elliptische 
Sporen. Die Anhangsel sind weiss, unregelmassig und bestehen 
aus ungetheilten Faden.—Wéachst auf der unteren Flache der 
Blatter von Xanthium spinosum im Comitate Ung (Ungarn). Es 
ist leicht moglich, dass der Pilz nicht selten ist und tiberall die 
Wirthspflanze begleitet.’’ From the description given it is evi- 
dent that the fungus is S. humuli fuliginea, which is found not 
uncommonly on Xanthinm spinosum, X. strumarum, X. Canadensé, 
X. Italicum, etc. 
S. phtheirospermi P. Henn. & Shirai, Engler’s Bot. Jahrb. 29: 
147. 1900, on Phtheirospermum Chinense, Mt. Takao, Prov. Mu- 
sashi, Japan (Kusano, no. 130, Nov. 8, 1899), is typical 5. humult 
Juliginea, quite similar in all respects to European examples 0” 
Taraxacum officinale, and on a number of hosts belonging to the 
Scrophulariaceae (Bartsia, Euphrasia, Melampyrum, Pedicularts, 
etc.). The specimen, labelled as above, of ‘“ S. phtheirosperm” 
(now in the Kew Herbarium) kindly sent to me by Dr. Hennings; 
shows perithecia 60-90 # in diam., with the cells of the outer 
wall large and distinct, and measuring 15-30 » wide; the appet- 
dages are few and distinct ; the ascus is broadly ovoid to subglo- 
bose, and measures 50-60 x 45-50. S. humuli var. fuligined 
occurs not uncommonly onanumber of plants in Japan (see “ Ery- 
siphaceae of Japan”’ (68, p. 446)). 
Serbinov (76) has transferred the Evysiphe fuscata of Berk. & 
Curt. (Grevillea, 4: 159. 1876), to the genus Sphaerotheca, giv- 
ing the plant the name S. fuscata (B. & C.) Serbin. Serbinov, 
however, has overlooked the fact that, as pointed out by Burrill 
(Ellis and Everhart’s N. Amer. Pyren. 8), and at p. 51 of my 
monograph, ‘‘£. fuscata”’ is identical with S. humuli fuliginea- 
The fungus recorded as S. Castagnet by Rabenhorst (59) of 
Euphorbia from Persia, proves to be Erysiphe taurica Lév.; that 
ee a 
poe 
