CLASSIFICATION 401 



Knieffia 



Crusty patches destitute of warts or granules, but bearing 

 minute scattered or clustered bristles, when seen under a pocket 

 lens. 



Usually forming thin, irregular crusts or growing out of 

 cracks in bark. The spines consist of a bundle of hyphae ; whereas 

 in Peniophora and Hymenochcete the spines on the hymenium each 

 consists of a single large cell. 



K. setigera. — Usually effused for 1-3 inches, rather thick and 

 fleshy or a mere film, white, then pale buff ; bristles very minute, 

 scattered. 



Distinguished from species of Grandinia by the presence of deli- 

 cate spines instead of warts. 



On wood and bark. 



K. subgelatinosa. — -Thin, subgelatinous, yellowish, then pale 

 buff ; spines very minute, scattered. 



Forming a very thin, broadly effused, subgelatinous film. 



On fir stumps. 



MUCRONELLA 



The patches are reduced to dense clusters of very dehcate up- 

 right, tapering spines, the substance from which they originate 

 not being compacted into a membrane. 



M. calva. — Spines |— i in. long, very slender, tapering to a sharp 

 point, whitish, then grey, quite smooth and even, erect. 



Forming patches on rotten pine and other kinds of wood. A 

 doubtful production not at all well understood. May possibly 

 prove to be a mould or a condition in the life-cycle of some other 

 fungus. 



SiSTOTREMA 



Fleshy, cap supported on a more or less central stem ; teeth in- 

 ferior, flattened, irregular, toothed, readily separating from flesh 

 of cap. 



Differs from Hydnimi in the very irregular spines, which are 

 often flattened and jagged. 



S. conflnens. — Cap fleshy, irregular, downy, white, up to i in. 

 across ; stem about i in. long, tapering downwards, often more or 

 less excentric in position ; gill-like plates or teeth on under surface, 

 entire or toothed. 



Gregarious or crowded. Very often several caps are grown to- 

 gether to form an irregular mass. Becoming tinged buff or brownish. 



On the ground. 



Radulum 



Resupinate, \-aguely effused and forming nodulose or warted 

 crusts bearing blunt tubercles or finger-like outgrowths. 

 2 D 



