LEPTONIA. 24& 



but the surface undulated, pallid, with a reddish tinge 

 below, base -white, downy; spores globose, smooth, 4 /t 

 diameter. 



Agaricus (Clito^ilus) stilbocepTialus, Berk, (variety), Cke.,- 

 Illustr., pi. 599. 



On the ground. 



The present species is figui'ed by Cke. from a drawing by 

 Worthington G. Smith, as a var. of Clitopiltis stilbocephalus^ 

 from w^hich it is quite distinct in the plane pileus, colourei 

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

 any other known species. 



LEPTOKIA. Fries, (figs. 14, 15, p. 236.) 



Pileus regular, thin, umbiKcate, 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, Pries, 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 

 Mue are common, also yellowish green. Distinguished from 

 Xolanea by the margin of the pileus being incurved when 

 young, also by the umbilicate pileus. Corresponding in. 

 structure to Collybia among the Leucosporae. 



ANALYSIS OF THE SPECIES. 



* Gills whitish. Pileus rather fleshy, not striate n»r- 

 hygrophanous. 



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



*** Gills pallid. Pileus becoming pale, yellow or greenisk. 



**** Gills grey or dusky. 



