BURLINGHAM : NEW RuSSULAS FROM MASSACHUSETTS 95 



Russula that I have given it the specific- name " disparilis " or the 

 unlike Russula. 



Russula pulchra sp. nov. 



Pileus convex, becoming plane to slightly depressed in the 

 center, up to 8 cm. broad ; surface Nopal-red on the margin, 

 scarlet-red next and scarlet on the disk, or peach-red except on 

 the margin, viscid when wet with pellicle separable on the margin, 

 pruinose for some time, all except the disk becoming areolate 

 with age ; margin tuberculate-striate, inrolled ; context white, mild, 

 without special odor ; lamellae white, equal, margin entire, fork- 

 ing next the stipe, venose-connected, broadest next the margin, 

 adnate, thin, subdistant ; stipe white, inclined to be pointed at the 

 base, spongy-stuffed to hollow, glabrous, rugulose, up to 7 cm. 

 X 2 cm. ; spores cream-white, ellipsoid to egg-shaped, echinulate, 

 uniguttulate, 8.7-10 X 7-5 



Type Locality: Stow, Massachusetts. 



Habitat : In swamp, gregarious, August 27 to September 22. 



Distribution : Found also at South Acton, Massachusetts, and 

 Wardsboro, Vermont. 



Relationship and Characteristics : This species seems to 

 belong with the Subvelutinae group, although the nearly white 

 spores might remind one of the Purpurinae group. The pileus 

 is more velvety-pruinose when young, and more broken into 

 areolae when mature than is the case with species of the latter 

 group, and is more brilliant than in any other species having a 

 mild taste and nearly white spores. The stem is white or has 

 merely a blush of red. The description of Russula paludosa 

 Britz. as given in Revis. Hymen. IV: 17. 1899, agrees with this 

 species except in the simple lamellae and the scabrous margin of 

 the pileus; but if R. paludosa is the same as R. elatior Lindbl. as 

 Maire thinks 1 then there is no question regarding the two being 

 distinct; since I have several specimens of R. elatior Lindbl. 

 which Professor Romell sent me, and Russula pulchra is quite 

 distinct. Russula elatior has very much the same appearance as 

 our Russula rubrotincta. In fact, specimens of this which I 

 sent to Professor Romell he thought must be that species and 

 suggested to me that I be sure that young specimens of the plants 



1 Bull. Soc. Myc. France 26: 65. 



