LEPTONIA. 24& 



but the surface iindulaied, pallid, with a reddish tinge 

 helow, base white, downy; spores globose, smooth, 4 [x. 

 diameter. 



Agaricus (^Clitopilus) stilbocephalus, Berk, (variety), Cke.^ 

 Illustr., pi. 599. 



On the ground. 



The present species is figured by Cke. from a drawing by 

 Worthington G. Smith, as a var. of Clitopilus stilhoceplialus^. 

 from which it is quite distinct in the plane pileus, coloured! 

 stem, and quite different spores ; neither does it agree witb 

 any other known species. 



LEPTO^'IA. Fries, (figs. 14, 15, p. 236.) 



Pileus regular, thin, umbilicate, or with a dark disc^ 

 cuticle usually becoming broken up into darker scales or 

 fibrils, margin at first incurved ; gills adnate or annexed, 

 but soon separating (or seceding) from the stem ; stem 

 glabrous, more or less polished, cartilaginous, hollow ; spores, 

 smooth or rough. 



Leptonia, Fries, Syst. Myc, i. p. 201 ; Cke., Hdbk., p. 129. 



Earely growing on wood, mostly on the ground, some in 

 dry pastures, others in swampy places. Various tints of 

 Viae are common, also yellowish green. Distinguished from 

 Nohmea by the margin of the pileus being incurved when 

 young, also by the umbilicate pileus. Corresponding iii 

 structure to Collijhia among the Leucosporae. 



ANALYSIS OF THE SPECIES. 



* Gills whitish. Pileus rather fleshy, not striate nor 

 hygrophanous. 



** Gills at first sky-blue, or with a blue tinge. 



*** Gills pallid. Pileus becoming pale, yellow or greenish^ 



**** Gills grey or dusky. 



