MYCOLOGIA 
VoL. VIII May, 1916 No. 3 
ILLUSTRATIONS OF FUNGI— XXIII 
William A. Murrill 
In Mycologia for January, 1916, an index was given to the 
species illustrated in the first 22 articles of this series, the draw- 
ings of which were prepared by Mr. Edward C. Volkert. The 
plate accompanying the present article is from original studies by 
Miss Mary E. Eaton ; and the descriptions are largely taken from 
Dr. Burlingham’s monograph of the American species of Rus- 
sula recently published in Volume 9, part 4, of North American 
Flora. For descriptions of the 13 species of Russula previously 
figured in this series, see Mycologia 4 ; pi. 68, 76, and 7 : pi. 160, 
163. 
Russula delica Fries 
Short-Stemmed Russula 
Plate 185. Figure i. X i 
Pileus fleshy, of medium thickness, firm, broadly convex-um- 
bilicate, then spreading, and at length infundibuliform, 8-16 cm. 
broad; surface white, sometimes with yellowish stains when the 
pileus has brought soil up with it, easily staining yellowish in dry- 
ing, dry, glabrous or sometimes under the lens appearing obscurely 
tomentose from the pulling apart of the fibers in the outer layer ; 
margin even, involute, late in expanding; context firm, white, 
unchanging where bruised, slowly becoming slightly acrid ; lamel- 
lae white, the edges often becoming faintly glaucous-green when 
mature or in the process of drying, becoming yellowish where 
[Mycologia for March, 1916 (8: 65—120), was issued April ii, 1916.] 
J21 
