76 
August. Distinguished from A. cyaneus, Pk., by its larger size, 
smooth stem and rivulose pileus, 
12. Agaricus (Collybia) conigenoides, ”. sy.—On decaying fruit 
cones of Magnolia, August, September. Pileus thin carnose, con- 
vex-plane, }’ across or less, not umbonate, pellucid-striate, white, 
becoming yellowish, and like the slender stem, covered with a 
* minute pubescence—lamellae free, not crowded, 9-12 entire, the 
others shorter, white becoming yellowish, margins pubescent. Stem 
slender, one inch long with a strigose rooting base, remaining white 
above for sometime. The pubescence of the lamellae is of a peculiar 
nature, consisting of narrowly elliptical bodies about .0015’ long and 
partly imbedded in the substance of the lamellae, but easily sep- 
arating. on carefully crushing a fragment on the slide of the 
microscope and floating out entirely free from the substance of the 
lamellae. These narrowly elliptic or fusiform bodies are of the 
- same character as the pubescence on the hymenium of the Paxillus 
described in this paper. This may perhaps be considered as a mere 
var. of Ag. conigenus, P#, but seems sufficiently distinct. I first 
observed it three years ago. 
13. Paxillus pubescens, . sy.—Pileus carnose, convex, covered 
with a brownish, rather thin and tough, smooth, separable, viscose 
cuticle, becoming dull red when dry, 1’—-2’ across—flesh yellowish 
compact in the disk, thinning out abruptly towards the margin. 
Lamellae adnate decurrent, not crowded, with a few shorter ones 
around the margin, and covered like the interspaces with a short, erect, 
scattering, ark colored pubescence. Stem solid, rather attenuated be- 
low, surface fibrillose, squamulose above, 14’ long, about }’ thick. 
Spores fusiform elliptic, olive-gray, about .0008’ long. In pine 
woods, subcespitose. Seen first, September, 1873—found again, Octo- 
ber, 1875. A very peculiar fungus. On carefully crushing on the 
slide of the microscope a portion of the hymenium, the hairs, if they 
may so be called, appear like little cylinders about 02’ long, 
attenuated below and abruptly enlarged above. lLamellae dark 
blood red when dry. 
» ‘sss 14, Marasmius cucullatus, ». sy.—On dead twigs and limbs of 
Viburnum corymbosum, October. Pileus about 1-20 of an inch 
across, thin, campanulate, margin sulcate-striate and in the dry 
plant closing around the stem like a hood—lamellae about 12 with 
shorter ones alternating, adnate, rather paler than the pileus. Stem 
}’-}’ long, slender, with a spot of white tomentum at base—pale- 
straw color throughout. Grows on branches not yet fallen. 
15, Marasmius praeacutus. . so —On cedar twigs and on the 
bark of cedar trees and logs—summer and fall. Pileus mem- 
branaceous, convex and margin incurved at first but soon ex- 
panding to nearly plane, subumbilicate and faintly suleate- 
striate, white with a reddish tinge in the centre, about }’ across.— 
lamellae hardly crowded, more or less branched, with a few shorter 
ones, adnate but not decurrent, white, rather narrow. Stem about 
one inch long, swollen below and hollow, but suddenly contracted 
at the very base almost to a point, color reddish-brown rather lighter 
above, the pointed base nearly white. 
