Report of the Botanist. 35 



hollow, striate and slightly mealy at the top, white ; spores brown, elliptical, 

 .0003' long, .00016' broad. 



Plant 3'-4' high, pileus 1-2 broad, stem 1 '-1.5" thick. 



Ground under alders. Adirondack Mountains. Aug. 

 It belongs to the section Appendicular, and is remarkable for the fragile 

 character of the pileus and stem. 



Agaricus (Psiloctbe) camptopus Pk. 



Pileus thin, broadly convex, glabrous, ^hygropbanous, brown and striatulate 

 when moist, whitish when dry ; lamellae narrow, close, whitish becoming 

 brown ; stem equal, smooth, generally curved, slightly pruinose or mealy at 

 the top, with a white strigose mycelium at the base; spores elliptical, .00025' 

 long, .00016' broad. 



Plant about V high, pileus 4"-10'' broad. 



Prostrate trunks of trees in woods. Catskill Mountains. Sept. 



This plant bears some resemblance in color to A. appendiculatus, but I 

 find no trace of a veil. The stem is solid, and the pileus is even when dry. 



COPRINUS MACROSPORUS Pk. 



Pileus ovate, then expanded, rimose-striate, obscurely floccose-squamulose, 

 white, the small even brownish disk squamose ; lamellae crowded, free, white 

 then black ; stem glabrous, white, with traces of an annulus near the thick- 

 ened or subbulbous base* spores very large, elliptical, .0008'-.001' long, 

 .0005 -.00065' broad. 



Plant caespitose, 2-3' high, pileus 1-2 broad, stem 1" thick. 



Ground in open fields. Ticonderoga. Aug. 



The prominent characters of this species are the rimose pileus, squamose 

 disk, free lamellae, and large spores. In its early ^ state it resembles some 

 species of Lepiota. It seems to be intermediate between the sections Atra- 

 mentarii and Micacei. 



COPRINUS ROTUNDOSPORUS Pk. 



Pileus thin, campanulate, whitish or pale cinereus with a^thin floccose sub- 

 persistent tomentum, even ; lamellae free ; stem slightly tapering upward, 

 white ; spores subglobose, .0003 -.00035' long, nearly as broad. 



Plant 2 '-3 high, pileus about 1' broad. 



About the roots of trees in woods. Catskill Mountains. Sept. 



This species is apparently related to C. niveus, and is remarkable for its 

 nearly globose spores. All the specimens seen were old and partly dried, so 

 that the description is not as full as could be desired. 



Cortinarius (Phlegmacium) Copakensis Pk. 



Pileus convex then expanded, often crowded and irregular, viscid, corru- 

 gated, pale-ochre, slightly tinged with red ; lamellae sub-distant, broad be- 

 hind, at first violaceous, toothed or eroded on the margin, the interspaces 

 sometimes veiny ; stem equal or tapering upwards, stuffed, silky, whitish ; 

 spores broadly elliptical, rough, .0003-.00035' long. 



Plant subcaespitose, 2-3 high, pileus 1.5-3' broad, stem 2"-4" thick. 



Ground in woods. Copake. Oct. 



The pileus when dry is glabrous and shining. 



