44 Thirty-sixth Report oivr the State Museum. 



so much from the original typical form that they have received dis- 

 tinguishing names and are called varieties. The following are the 

 principal ones. 



Var. albus. White variety. Pileus smooth or slightly silky-fibril- 

 lose, white or whitish, stem short. 



This is our most common variety. It occurs in unfrequented streets, 

 waste places, cultivated grounds and especially in rich pastures where 

 the grass is kept short. It usually appears in August and September, 

 but sometimes in warm, wet weather it is found early in the season. 

 A very large form with the pileus six or seven inches broad sometimes 

 occurs. 



Var. pratlcola. Meadow variety. (A. praticola, Viit.) (A. pratensis, 

 Handbook.) Pileus adorned with reddish scales, flesh somewhat 

 tinged with pink. This variety must be uncommon with us. I have 

 seen no examples of it, nor of the three following varieties : 



Var. timbrinus. Brown variety. Pileus smooth, brown ; stem 

 stout and minutely scaly. 



Var. 7'ufescens. Reddish variety. Pileus reddish, minutely scaly ; 

 lamellae at first white; stem elongated; flesh turning bright red when 

 cut or bruised. This departs so decidedly from the ordinary charac- 

 ters of the type, especially in the white color of the young lamellae, 

 that it seems to merit separation as a distinct species. 



Var. villaticus. Villa variety. (A. villaticus, Brond.) Plant large, 

 pileus scaly; stem scaly, coated or subvolvate by the inferior veil. 

 In the Handbook of British Fungi this is placed as a variety of ^4. ar- 

 vensis, but most authors regard it as a variety of ^. camjyestris. 



Var. Jiortensis. Garden YSiYiety. Pileus brownish or ochrey-browu, 

 bearing hairy fibrils or minute scales. This is often cultivated and is 

 occasionally exposed for sale in the markets of Albany. 



Var. Buclianani. Buchanan's variety. Pileus white,, smooth, de- 

 pressed in the center, the margin naked ; stem stout ; annulus thin, 

 lacerated. A rare variety sometimes occurring in mushroom beds. 



Var. elongatus. Long-stem variety. Pileus small, smooth, convex, 

 the margin adorned with the adherent remains of the lacerated veil ; 

 stem long, slender, slightly thickened toward the base ; annulus 

 slight or evanescent. This is also a variety of mushroom beds. 



Var. vajoorarius. Green-house variety. (A. vaporarius, Vitt.) Pileus 

 brownish, coated with long hairs or fibrils ; stem hairy-fibrillose, be- 

 coming transversely scaly. Conservatories, cellars, etc. Not differing 

 greatly from Var. hortensis. 



