CLASSIFICATION OF ACAKK'S 185 



163. Hygrophorus Russula li. (Edibli 



Syst. Mycol., 1821 (as Tricholoma). 



Illustrations: Bard, Muslim b, Fig. 51, p. 71. L908. (Aa 



Tricholoma Russula. i 

 Michael, FQhrer f. Pilzfreunde, Vol. 1 1, (aa Tricholoma R 



s/ila. I 



Ricken, Biatterpilze, PI. I. Fig. L. 



Peck, X. V. si.iic .Mus. Bull. 54, PI. 77. Fig. i 5, 1902. U 



Tricholoma Russula. I 

 Bresadola, Fungh. mang. e. vel., PI. 22. (Aa Tricholoma 



Russula. i 

 Plate XXVI of this Report. 



PILEUS 5-12 cm. broad, firm, convex, at length plai r de- 



pressed with margin elevated-wavy, viscid when moist, pale pink to 

 rosy-red, somewhat variegated, disk somewhat scaly-dotted, margin 

 at first involute and floccose pruinose. FLESB compact, thick, 

 White or at length reddish-tinged. GILLS rounded behind, at 

 length spuriously decurrent, narrow, acuminate a1 ends, thickish, 

 white at first then reddish-spotted, trama of divergent hyphae. 

 STEM stout, usually short, 3-7 cm. long, 15 25 nun. thick, firm, solid, 

 dry, equal or subventricose, apex white-flocculose, white, becoming 

 reddish in age. SPORES narrowly elliptical, apiculate, Bmooth, 

 white in mass. BASIDIA slender, elongated, 15x5-6 micr. ODOB 

 and TASTE mild. 



Solitary or caespitose in troops. On the ground, among leai 

 in frondose woods of oak, maple, etc. Ann Arbor, Detroit, 

 Marquette, New Richmond and throughoul the State. September- 

 November. < 'oninion. 



This Bygrophorus has usually been placed with the Tricholomaa 

 with which it has some affinity; bu1 the character of the gills, 

 which are somewhal waxy and whose trama is composed of diver 

 genl hyphae. the attenuated lower pari of the basidia and its gen 

 era! characters ally it much better to Hygrophorus where Quelel 

 and Ricken also place it. The involute, slightly floccose margin of 

 the pileus is similar to that of //. pudorinus. I' often occurs in 

 troops in late autumn, when it is covered by leaves which it pushes 

 up so as to form humps which betray its presence. It ia among 

 the very i»cst of edible mushrooms, especially after cold weather 

 sets in. at which time it is free from grubs. The bright color ia 



similar to that of some RusSlllas, hence the specific name. Trit 



