228 
Journal of Mycology 
LVol. 10 
HYPOXYLON ARGILLACEUM (Pers.) 
This species seems to be rare in North America, at least 
the species as described by Nitschke. I find it on the bark of 
Fraxinus americana. My note upon the fruit differs somewhat 
from Nitschke’s description; it is as follows: Asci cylindric, 
with a long slender pedicel, paraphysate, 8-sporous, the spores 
obliquely uniseriate, the sporiferous part 100-125 x 10-12 mic.; 
the spores simple, elliptic-oblong, inaequilateral, brown, 17-20 x 
9-10 mic. 
NOTES ON UREDINEAE, III. 
E. W. D. HOLWAY. 
Puccinia atro-fusca (Dudley & Thompson) Holway n. n. 
This species was described in this Journal (10:55. March 1904) 
as Uromyces atro-fuscus, and though I have been unable to 
examine the type specimens I have the same plant on Carex 
douglasii collected by J. S. Colton near Ellensburg, Yakima 
region, Wash., Aug. 25, 1902. It is a very interesting rust. 
The supposed teleutospores are typical amphispores, closely re¬ 
sembling those of Puccinia vexans. The teleutospores in my 
specimens are few, intermixed with the amphispores, oblong, the 
two cells rounded, nearly equal in size, dark brown, smooth, apex 
rounded, only a little thickened, slightly constricted, 36-40 x 16- 
22/A, pedicel hyaline, about the length of the spore. 
I find no uredospores, and believe that those described are 
not uredospores. Their description of the II reads: “Spores 
scattered among the teleutospores, not abundant, elliptical, 16-17.5 
x 26-26/A, rather thick-walled, echinulate, germ-pores conspicuous, 
equatorial A 
This applies exactly to the amphispores, which are frequently 
found of this shape and size. An examination of them in lactic 
acid shows that all the amphispores possess two equatorial germ- 
pores. Their description mentions a I stage which is evidently 
an error and was no doubt intended to describe the sori of their 
supposed II and III stages. Further collections will no doubt 
enable illustrations and fuller descriptions to be made. 
