4S8 BRITISH FUNHI 



tree, some of the plants being more or less exposed, others buried. 

 \Mien fresh it is minutely downy, of a reddish ochre, which be- 

 comes dull when handled much or badly dried. At first white 

 within, then very pale yellow, at length dusky. 



In the ground under beech trees, Lombardy poplars, etc. 



M. ambiguus. — Globose or elliptical, very foetid, nearly even and 

 smooth, pale olive, becoming brownish when exposed to the air ; 

 septal plates white, about i in. across (spores obovate or elliptical, 

 apex variable, acute or blunt and papillate, smooth, brown, 13-15 

 X7-8/X). 



Differs from M. variegatus, var. broomcianus, in its much larger 

 ovate spores with a papilla at the apex, and by its powerful smell, 

 resembling asafoetida. Berkeley says that a single specimen in a 

 room emits so powerful an odour as to make it scarcely habitable. 



Under fir trees, etc. 



var. intermedins. — Spores obovate, obtuse, even, very rarely 

 papillate. 



About the size of M. variegatus, bright rusty-colour, but the 

 spores are much larger, equalling in size those of M. ambiguus, but 

 of a very different shape ; there is rarely an indication of a papilla, 

 and the general form is obovate. The smell resembles that of 

 M. ambiguus. The septa are yellow when fresh, becoming red 

 when dried. 



Partly underground, under trees. 



Hydnangium 



Peridium fleshy or quite thin, smooth or silky, sterile base 

 absent ; cells of the gleba minute, at first empty, becoming filled 

 with spores (spores globose or subglobose, pale-coloured, echinulate). 



The globose or subglobose, echinulate, coloured spores, which 

 are small, and the absence of a sterile base separate this genus from 

 its closest ally, Octaviania. 



H. carotcBcolor (fig. 2, PI. B). — Peridium oLlong, without any 

 obvious point of attachment, wall thin, wrinkled, slightly downy, 

 brick-red or carrot-colour, orange within ; cells of the gleba hollow, 

 about J in. diam. (spores pale yellow, subelliptic, coarsely echinu- 

 late, 15-18 X 12-13 I')- 



Peridium pale orange-red to brick-red, inside bright carrot- 

 colour, not deliquescent. 



Under trees. Sometimes half exposed. 



H. carneum. — Peridium subglobose or irregular, externally flesh- 

 colour, inside paler flesh-colour, unchangeable in tint, about f in. 

 across (spores globose, with long, slender, pointed spinules, pale 

 pinkish brown, about 12 jx diam.). 



The peridium is at first covered with white, fugacious down. 



Underground or partly exposed. 



