300 FUNGUS-FLOKA. 



''* Gills adnate or adnexed. 



Russula. Gills very brittle, trama composed of more or 

 less spherical cells ; spores globose, warted. 



Mycena. Pileus thin, campanulate, usually striate, margin 

 at first straight. 



Collybia. Pileus rather fleshy, more or less plane; margin 

 incurved when young. 



Marasmius. Tough, drying up and reviving when 

 moistened ; gills often connected by veins. 



Tricholoma. Pileus usually fleshy ; gills more or less evi- 

 dently sinuate and adnexed ; stem stout. 



Armillaria. The only genus with a ring on the stem and 

 attached gills. (King sometimes rather vague; gills 

 decurrent in some species.) 



*** 



Gills free from the stem. 



Hiatula. Pileus exceedingly thin, striate. King and volva 

 absent. 



Lepiota. King present ; volva absent. 

 Amanitopsis. Yolva present ; ring absent. 



Amanita. Base of stem with a distinct, free volva ; ring 

 present on stem. (The volva is sometimes almost, or 

 entirely without a free margin, hence adnate to the 

 stem.) 



FIGURES ILLUSTRATING THE LEUCOSPOBAE. 



Fig. 1, Hygrophorus Wynniae, and section of same ; nat. size ; Fig. 2, 

 Lactarius blennius ; about one-third nat. size, and section nat. size; 

 Fig. 3, Spores of same, X 400 ; Fig. 4, Cantharellue aurantiacus ; about 

 two-thirds nat. size; Fig. 5, Nyctalis asterophora, and section; two- 

 thirds nat. size ; Fig 6, Lentinus tigrinus ; about two-thirds nat. size ; 

 Fig. 7, Panus stypticus ; nat. size ; Fig. 8, Lenzites flacdda ; two-thirds 

 nat. size ; Fig. 9, section of same ; nat. size ; Fig. 10, Omphalia 



