The Mycologic Flora of the Miami Valley, O. ui 
stuffed, stout, thickened upward, white or yellowish. Lamelle de- 
current, very distant, arcuate, rather broad, thin, white then yellowish. 
Spores nearly globose, .004-.005 mm. long. (See Plate V.) 
In woods on rotten wood in spring and summer. Pileus 14-3 in. 
in diameter, stipe 1-2 in. long. The pileus is whitish and changes to 
yellowish as it passes maturity. 
B. Pileus campanulate from the first, the margin straight and 
appressed to the stipe. 
c. Lamelle broad. 
66. A. CAMPANELLA, Batsch.—Pileus membranaceous, convex, um- 
bilicate, striate, hygrophanous. Stipe hollow, horny, clear brown; the 
base attenuate, tawny-strigose. Lamelle decurrent, arcuate, venose- 
connected, luteous. 
Upon trunks in woods; czspitose, luteous-ferruginous. Pileus 4-1 
in. across, stipe 1-2 in. long. ; 
67. A. FIBULA, Bull.—Pileus membranaceous, cucullate then ex- 
panded, somewhat umbilicate, striate, expallent, even when dry, weak 
orange-color. Stipe setaceous, concolorous. Lamelle long decurrent, 
distinct, whitish. Spores .003.002 mm. 
In moist places frequent among mosses. Pileus 4 an inch or less in 
breadth, yellow or tawny with a dusky center; lamelle yellowish or 
whitish; stipe 1-14 in. high, yellow or tawny with a brownish apex. 
d. Lamelle narrow. 
68, A. INTEGRELLUS, Pers.—White, fragile. Pileus hemispheric 
then expanded, pellucid-striate. Stipe very slender, short, pubescent 
below. Lamelle decurrent, fold-like, distant, somewhat branched; the 
edge acute. Spores .0125 mm. long. 
Common on old rotten stumps; gregarious or ceespitose. Pileus thin, 
and membranaceous 4 an inch or more broad, stipe $-1 in. long. I 
have seen an old stump covered with them after abundant rains. 
SuBGENus LX.—PLEUROTUS. 
Spores white. Stipe excentric, lateral or none. Fungi irregular, 
epiphytal. 
A, Stipe excentric. 
a. Lamelle adnate, 69-72. 
b. Lamelle decurrent, 73-75. 
