CLASSIFICATION OF AGARICS 159 



ical Gardens Avere white when dry. As these species occur so seldom 

 and far apart, it is difficult to obtain exact data with regard to their 

 characters. B. anomala Pk. and R. albidula differ in the acrid taste. 



140. Russula subdepallens Pk. (Edible) 

 Torr. Bot. Club Bull., Vol. 23, 189(3. 



PILEUS 5-14 cm. broad, fragile, convex then plane and depressed, 

 margin elevated in age, bright rosy-red, shading into yellowish 

 blotches as if the red color were put over the yellow, disk paler in 

 old specimens, disk dark-ied in very young plants, with a thin, 

 separable, viscid pellicle, tuhercular-striate on margin, obscurely 

 wrinkled elsewhere. FLESH white, rosy under the cuticle, becom- 

 ing slightly cinereous, very fragile. GILLS white, broad in front, 

 narrowed behind, adnate, subdistant, few forked, interspaces venose. 

 STEM Avhite, spongy-stuffed, rather stout, 4-10 cm. long, IS cm. 

 thick, subequal. SPORES white in mass, globose, echinulate, 7.5-8 

 micr. TASTE mild. ODOR none. 



Gregarious. In woods of maple, yellow birch and hemlock of 

 northern Michigan. August. 



Found in a number of places in considerable abundance. The 

 fragile character, especially of the gills, is very marked and the 

 mild taste, white gills and red cap help to distinguish it. The 

 flesh does not turn so strongly ashy as in Peck's plants, and this 

 character did not seem to be always noticeable. It is distinguished 

 from E. purpurina, the brilliant-red Russula, by its gregarious 

 habit, large size and less viscid cap ; also the gills are not crenulate. 

 Our specimens had the stature and appearance of E. ruguloso and 

 E. emetica var. gregaria. Peck's plants were found in Pennsylvania 

 by Dr. Herbst, and reported but once ; the species is not included in 

 Peck's New York monograph. Our plant has so "far been limited to 

 the north. 



141. Russula purpurina Quel. & Schultz (Edible) 



Hedwigia, 1885. 



Illustrations: Mcllvaiue, American Fungi. PI. 4.") [a, p.] 188, 1900. 

 Plate XXI of this Report. 



PILEUS 3-7 cm. broad, fragile, viscid, usually very viscid, sub- 

 globose then expanded and slightly depressed at the disk, hrilliant 

 rosy-red to blood-red or even darker, pellicle somewhat separable. 



