46o HRITiSlI FUNGI 



expanded " egg " of Mutinus caninns, being pure white and fur- 

 nislied with white strands or roots which spring from mycelium 

 wliich spreads for an inch or two in the soil ; in this condition it 

 turns pink when touched ; at a later stage it changes to yellow, 

 with here and there a pinkish tinge. The smell very much resembles 

 that of Melanogaster ambiguus when old, and when young has a 

 sour or acid smell. It rapidly deca3'S into a brown, foetid 

 mass. 



In the soil in sandy fir woods. Gregarious. 



R. Inteolits. — Peridium globose, oblong or ovate, whitish at first, 

 soon becoming dingy yellow, then olive-brown, covered with 

 numerous slender, free or adnate strands of mycelium ; wall of 

 peridium thick and somewhat leathery, |-i| in. across ; cells of 

 the gleba minute, rounded, subequal, at first empty, becoming 

 stuffed, walls surrounding the cells or cavities whitish (spores 

 narrowly elliptic, smooth, for a long time colourless, then pale olive, 

 8x 3/^)- 



Smell at first weak, becoming strong and verv offensive when 

 old. 



In sandy pine woods, etc. Underground or partty exposed, 

 solitary or gregarious. 



Hymenogaster 



Peridium globose or irregular, wall fleshy or quite thin, simple, 

 or consisting of one layer only, running down into a distinctl}' 

 marked sterile base ; cavities of the gleba at first empty, radiating 

 from the sterile basal stratum, or irregularly scattered ; spores 

 elliptical or spindle-shaped, rough, coloured. 



The large, coloured, elliptical or fusiform, rugulose or nodulose 

 spores, cavities or cells of the gleba emptj^ at first, and the sterile 

 basal stratum of the peridium, stamp the genus. 



H. klotzschii. — Peridium varies from subglobose to obovate, dingy 

 white, fibrillose at the base, -J-i in. across, inside at first pallid, 

 gradually changing to brownish ochre (spores broadly elliptical, 

 ends blunt, minutel}/ warted, pale brown, 18-20x11-13 fj). 



Peridium white at first, t-hen tinged yellowish, covered with very 

 delicate adpressed down. The rooting fil res or strands of mycelium 

 are slender. 



Underground among loose soil. 



H. muiicHs. — Peridium globose, cjuitc white when young, be- 

 coming tinged brown and cracked, about i in. across ; inside pale 

 yellowish brown (spores obovate or oblong, ends very blunt, 

 smooth, pale brown, 18-21x10-12 /j-). 



Peridium usually globose, but sometimes slightly l"! cd ; dis- 

 tinguished by its peculiar spores. Much resembling in general 

 appearance H. olivaceiis and H. lilaciiius. Smell \-cry slight. 



Underground, under trees, etc. 



