Report of the Botanist. 71 



tiilate on the margin when moist, dirty white or clay colored with 

 a pinkish tinge, subatomaceous and radiately wrinkled when dry ; 

 lamellae close, broad, attached, with a slight spurious decurrent 

 tooth, ding}^ flesh color, then rosy brown, tinally black with a 

 whitish edge : stem pallid, equal, hollow, slightly enlarged at the 

 base, slightly mealy and striate at the top, snbfibrillose when 

 young, with a white mycelium at tlie base; spores elliptical cymbi- 

 form, -j^Vo' long. 



Plant 2-3' higli, pilens l'-2' broad, stem l"-2" thick. About 

 manure heaps. West Albany. May. 



It is gregarious or subcsespitose, and has a strong odor resem- 

 bling that of the " poison elder," Samhucus puhens. The pileus 

 is sometimes split on the margin and occasionally cracked on tlie 

 sui'face. 



CoPRINUS KADIATUS Bolt. 



Horse dung. Sandlake. August. 



COPKINUS SILYATICUS U. Sp. 



Pileus membranaceous, with a thin fleshy disk, convex, plicate- 

 striate on the margin, dark brown, the depressed stride paler; 

 lamellae subdistant, narrow, attached to the stem, brownish ; stem 

 fragile, slender, smooth, hollow, white; spores gibbous-ovate, 

 2 nVo' long. 



Plant 2' high, pileus 6"-10" broad, stem .5" thick. Grround in 

 woods. Greig. September. (Plate 4, figs. 10-14.) 



The striae extend about half way up the pileus. Allied to C. 

 plicatilis and G. ejplieineris. 



CoPRINUS SEMILANATUS 11. 8jp. 



Pileus submembranaceous, bi'oadly conical, then expanded and 

 strongly revolute, with the margin sometimes split, farinaceo- 

 atomaceous, finely and obscurely rimose-striate, pale grayish 

 brown ; lamellae narrow, close, free ; stem elongated, fragile, hollow, 

 slightly tapering upward, white, the lower half clothed with loose 

 cottony flocci w^hich rub off easily, the upper half smocfth or slightly 

 farinaceous ; spores broadly elliptical, -g-gVo' long, 



Plant very fragile, 4-6' high, pileus 8"-12" broad, stem 1" thick 

 at the base. Rich ground and dung. Sandlake. August. (Plate 

 4, figs. 15-18.) Allied to C. coopertus. 



BOLBITIUS NOBILIS 11. SJp. 



Pileus thin, fleshy on the disk, ovate, then campanulate, smooth, 

 plicate-striate, pale yellow, the disk tinged w^ith red, the margin at 



