118 
Journal of Mycology 
[Vol. 8 
become grayish brown. Pileus thin, convex to expanded, 
in age depressed, margin more or less irregular and wavy, hygro- 
phanous, smooth. Tubes rather large, angular and irregular, dis¬ 
sepiments thin and the edge more or less lacerate or fimbriate. 
Basidia clavate, 20-25 x 5-6 u, 4-spored. Spores hyaline, 
smooth, with a large oil drop, 4-5 x 3-4 /j. . Stem even, reticu¬ 
late above. On the ground under conifer trees (Picea or Tsuga), 
in Glen Burney, Blowing Rock, N. C. September, 1901, At¬ 
kinson and Troyer. C. U. herb., No. 10523. 
Polyporus castanophilus Atkinson n. sp.— Pileus dim¬ 
idiate, sessile, convex, 10-20 cm. broad, 10-12 cm. long, zonate, 
more or less rugose and sometimes tomentose toward the base, 
reddish yellow to reddish orange, flesh yellowish, zoned, soft and 
watery but tough and drying somewhat shrunken but hard and 
firm. Tubes plane, medium size, dissepiments thin, edges very 
finely fimbriate, chrome yellow to bright orange, drying dull yel¬ 
low or reddish brown, tubes 6-8 mm. long. Basidia clavate, 
15-20x4-5 n , 4-spored. Spores white, hyaline, smooth, with 
a few granules, 3x2/4. On decorticated and one-half rotted 
chestnut logs. Woods, Blowing Rock, N. C., September 1901, 
G. F. A., C. U. herb., No. 10072. 
Stropharia coprinophila Atkinson n. sp.—Plants clustered, 
often with the bases of several joined, 3"7cm. high, pileus 2-6 cm. 
broad stems 6-15 mm. in thickness. Pileus convex to expanded 
and margin often elevated in age, fleshy, 2-3 mm. thick, thin at 
the margin, dingy white and soft with a finely floccose surface 
appearing something like a chamois skin and often with numerous 
appressed scales. Margin appendiculate with fragments of the 
veil. Gills adnate, slightly sinuate, 4-6 mm. broad, grayish then 
dark brown, edge white. Spores blackish with a slight purplish 
tinge, brown with purplish tinge under the microscope, oval to 
short oblong or elliptical, smooth, 7-8 x 3.5-4.5 u . Basidia 
clavate, 30-35 x 6-8 u , 4-spored. Cystidia clavate to subventri- 
cose, extending above the hymenium and arising from the lower 
part of the subhymenium, 60-65x10-12 y. Stem fleshy, sepa¬ 
rating easily from the flesh of the pileus, soft, hollow, even or 
somewhat enlarged at the base, whitish, fibrous striate, floccose 
scaly with a delicate annulus near the base where the margin 
of the cap separates from the stem in young stage. Parasitic on 
clusters of Coprinus atramentarius, Ithaca Flats, N. Y., October 9, 
1900, C. O. Smith, C. U. Herb., No. 5424; lawn near armory, 
C. U. campus, October 14, 1901, G. F. A., C. U. Herb., No. 7852. 
Also at St. Paul, Minn., autumn 1901, O. W. Taylor. Edible. 
Taste when fresh exactly like that of Coprinus atramentarius. 
The host is deformed and prevented from opening fully, but in 
some specimens the gills and pileus were well enough developed 
to permit of identification. 
