54 



Agaricus (Hypholoma) phyllogenus. Peck. 



Pileus firm, convex, sometimes sliglitly umbonate, hygroplianus, reddish- 

 brown when moist, alutaceous when dry; lamellae plane, broad, close, brown, 

 white on the edge ; stem equal, fibrillose, stuffed or hollow, expanded at the 

 base into a thin flat disk ; spores pale-brown, subglobose, .0002' in diameter. 



Plant 8"-12" high, pileus 2"-4" broad, stem .5" thick. 



Fallen leaves in woods. Worcester. July. 



This is a very small but distinct species, remarkable for the disk- 

 like base of the stem by which it is attached to the leaves on which 

 it grows. 



Coprinus variegatus, Peck. 



. Pileus fleshy, fragile, oblong-ovate, then campanulate, obtuse, hygrophanous, 

 pale watery -brown when moist, whitish or cream colored when dry, variegated 

 by scales and patches of a superficial ochraceous tomentum, the margin finely 

 striate ; lamellae lanceolate, crowded, ascending, free, white, then rosy-brown, 

 finally black ; stem equal, brittle, hollow, white, at first peronate-annulate, 

 then floccose-pruinose, with white branching root-like threads at the base ; 

 spores .00033' long. 

 Plant densely caespitose, 3'-5' high, pileus 1'— 1.5' broad, stem 2"-4" thick. 



Thin soil and decaying leaves covering rocks. Slope of Crows' 

 Nest near West Point. June. 



Allied to C. atramentarius. When young the whole plant is 

 coated by an abundant superficial tomentum. This soon breaks up 

 into loose scales or patches which peel off in flakes, revealing the 

 smooth pileus beneath. The slight abrupt annulus soon vanishes. 



Coprinus insignis* Peck. 



Pileus campanulate, thin, Bulcate-striate to the disk, grayish fawn-color, the 

 smooth disk sometimes cracking into small areas or scales ; lamellae ascend- 

 ing, crowded ; stem hollow, slightly fibrillose, striate, white ; spores rough, 

 .0004' x. 00028'. 



Plant 4'-5' high, pileus 2'-3' broad, stem 3" thick. 



About the roots of trees in woods. Worcester. July. 



Coprinus angulatus, Peck. 



Pileus thin, hemispherical or convex, plicate- sulcate, the disk smooth ; lam- 

 ellae subdistant, whitish, then black ; stem equal, smooth, whitish ; spores 

 compressed, angular, subovate, .0004' x .00033'. 



Plant l'-2' high, pileus 6"-12" broad, stem .5" thick. 



Woods. Croghan. September. 



The specific name has reference to the angular character of the 

 spores. 



