Xerotus 



AGARICACE^E 



313 



Rigid, persistent, analogous with Ctmtharellus, but differing in 

 its leathery substance. 



Fig. 69. — Xerotus degener Fr. in section and entire with portion removed 

 to show the gills. Natural size. 



1448. X. degener Fr. (from its ill-developed condition in comparison 



with other species of Xerotus ; degener, degenerate) a b. 



P. thin, very tough, plano-infundibuliform, somewhat zoned, 



striate when moist, flocculose when dry, brown-grey to grey, 



cinnamon, salmon or pale yellowish-brown. St. solid to 



stuffed, attenuate downwards. G. very distant, whitish-grey, 



yellowish or salmon-white. 



Peaty ground, amongst short grass in sterile gravelly places. Jan. 

 if X iix |in. . 



LVI. TROGIA Fr. 



(After Jacob Gabriel Trog, Swedish botanist.) 



Pileus membranous, soft, flaccid, arid, persistent, texture fibrillose. 

 Stem lateral or none. Gills fold-like, venose, edge in the only 



Fig. 70. — Trogia crispa Fr., entire and in section. Natural size. 

 A, section across gilN. 



