Report of the State Botanist. 135 



due to meteorological conditions. The lamellae, though at first crowded, 

 become more lax with the expansion of the pileus. They are generally 

 a little broader toward the marginal than toward the mner extremity. 

 Their tendency to deliquesce is often shown by their wetting the paper 

 on which the pileus has been placed for the purpose of catching the 

 spores. The stem is usually somewhat fibrous and striated but forms 

 occur in which it is even and glabrous. When growing from the sides 

 of stumps and prostrate trunks it is apt to be curved. Two forms deserve 

 varietal distinction. 



Var. albus. Pileus and stem white or whitish. 



Var. albipes. Pileus cinereous yellowish or brown; stem white or 

 whitish, destitute of blackish fibrils. 



In Europe there are three or four forms which have been designated 

 as species under the names A. rigens, A. patricius, A. eximius and A, 

 petasahis, but Fries gives them as varieties or subspecies of A. cervinus, 

 though admitting that they are easily distinguished. None of these 

 have occurred in our State. A. atricapillus, Batsch., A. latus, Bolt., 

 A. Pluteus, Pers., and A. Neesii, Kl., are given as synonyms of A. 

 cervinus. 



Pluteus umbrosus, Pers. 

 Shade-loving Agaric. Brown Pluteus. 



Pileus fleshy, at first campanulate, then convex or expanded, rugose 

 wrinkled and more or less villose on the disk, fimbriate on the margin, 

 blackish-brown ; lamellae broad, somewhat ventricose, at first whitish, 

 then flesh-colored, black ish-broi07i and fimbriate or de7iticulate on the 

 edge ; stem solid, colored like or paler than the pileus, fibrillose or 

 villose-squamose ; spores elliptical, .0003 in. long, .0002 broad. 



Decaying wood and stumps, especially of pine, both in shaded and 

 open places. Not rare. 



This is similar in size and general appearance to the preceding species, 

 from which it is readily distinguished by the rugose-villose disk of ths 

 pileus and the dark brown edge of the lamellae. The color of the pileue 

 is usually darker than in that species. 1 have not seen it with the mar- 

 gin fimbriate, though this is a prominent character of the species in 

 Europe. 



Pluteus granulans, Peck. 



Granular Pluteus. 



Pileus convex or nearly plane, subumhor\a.te,rugose-wri7ikled,granu- 

 lose or grayiulose-villose, varying in color from yellow to brown ; lamel- 

 lae rather broad, crowded, ventricose, whitish, then flesh-colored ; 

 stem equal, solid, colored like the pileus, often paler at the top, velvety- 

 pubescent, rarely squamulose ; spores subglobose or broadly ellij)tical, 

 .00025 to .0003 in. long, .0002 to .00025 broad. 



Plant 1.5 to 3 inches high, pileus i to 2 inches broad, stem i to 2 

 lines thick. 



Decaying wood and prostrate trunks in woods. Hilly and mountain- 

 ous districts. June to September. 



The species is closely related to the two preceding, but is readily dis- 

 tinguished from them by the peculiar vesture of the pileus and stem. 



