70 AGARICACEvE Mycena 



striate, at first adpressed to the stem, never involute. A few species 

 as the next genus is approached have the pileus slightly depressed. 

 Stem simple, slender, central, fistulose (except 310) and cartila- 

 ginous, sometimes hair-like, sometimes rooting amongst dead leaves. 

 Gills adnate or adnexed, often sinuate, varied in attachment, not 

 truly decurrent, often minutely denticulate or fringed at the edge. 

 (Fig. 18.) 



Most of the species grow on twigs, stumps, dead branches and 

 dead leaves ; some grow on the ground. They are usually slender, 

 small, beautiful and scentless, some have a strong alkaline or 

 mephitic odour ; some contain a coloured juice termed milk. They 

 appear after rain in summer and autumn; a few remain till early 

 winter. Species 287366 



a. Calodontes. Stem juiceless, base not dilated into a disc. 



Gills saw-edged or fimbriate, darker edged. 287 297 



b. Adonidea. Colour pure and bright, not becoming fuscous or 



ashy, except 300. Stem juiceless, base not dilated into a 

 disc. Gills of one colour, including the edge. Single, 

 terrestrial, except 306 and sometimes 305. 298306 



c. Rigidipedes. Stem firm, tough, juiceless, somewhat strigose 



and rooting. Gills white, changing to grey or reddish. 

 Persistent, odourless, usually growing on stumps and very 

 caespitose, but single examples occur on the ground. 



307316 



d. Fragilipedes. Pileus hygrophanous. Stem fragile, juiceless, 



not dilated into a disc at the base. Gills changing colour. 

 Normally terrestrial and single, a few caespitose and growing 

 on wood. Strong smelling. 317 334 



e. Filipedes. Not hygrophanous. Stem juiceless. Gills 



changing colour. Terrestrial amongst grass ; usually single. 



335342 



f. Lactipedes. Whole plant exuding a white or coloured juice. 



343349 



g. Glutinipedes. Stem glutinous. Must not be confounded with 



species with smooth, moist or slippery stems. 350 356 

 h. Basipedes. A small dilated base, bulb or disc at the base of 



the dry, equal, stem. Usually solitary. 357 361 



i. Insititicz. Stem apparently inserted or grafted into dead 



leaves, etc. Soon flaccid, very tender. 362 366 



a. Calodontes. 



287. M. pelianthina Qudl. (from the livid pileus ; Gr. peliaino, to 



make livid) a b. 



P. umbonato-convex, pale brown, dull flesh-colour or lavender, 

 whitish when dry. St. ochreous-whitish or whitish-lavender. 



