CLASSIFICATION 397 



H. molluscum. — -Very thin, readily separable from the wood ; 

 spines short, slender, reddish. 



On wood. 



H. weinmanni. — Thin, buff with a grey tinge ; teeth sharp, not 

 a line long. 



On branches and rotten wood, especially poplar. 



H. crinale. — Very thin, texture fibrillose, umber or with a rusty 

 tinge ; spines hair-like, crowded, 1-2 lines long. 



H. variicolor. — Substance white, forming a scurfy, adnate, in- 

 separable crust spreading for 1-2 in. ; spines very minute, crowded, 

 conical, unequal, brownish, usually more or less pressed down. 



On trunks, especially oak. 



** Spines yellowish or gyeenish. 



H. aureum. — Every part golden yellow ; spines crowded, about 

 I line long ; 1-2 in. across. 



On dead branches. 



H. denticulatum. — Substance longitudinally effused, often for 

 several inches, rather mealy, bright yellow ; spines the same 

 colour, crowded, slightly toothed here and there. 



On rotten wood. 



H. alutaceum. — Substance longitudinally effused for several 

 inches, crusty, inseparable, edge naked, pale ochraceous ; spines 

 similarly coloured, minute, crowded, unequal, acute. 



Resembling Grandinia granulosa in colour and general appear- 

 ance, but quite distinct in the acute spines. 



On dead wood. 



H. sordidum. — Substance effused, often for many inches, thin, 

 readily separating from the matrix, dingy yellow, edge irregularly 

 porous, sulphur-yellow ; spines very much crowded, often tufted, 

 compressed and torn, subacute, i-i| lines long. 



On rotten wood. 



H. viride. — Substance broadly effused, softly tomentose, green, 

 becoming yellowish with age ; spines straight, about i line long, 

 rather thick, irregular, more or less toothed, green. 



Often extending in patches 8-10 in. long. 



On rotten wood. 



H. limonicolor. — Substance closely adnate, bright citron-3'ellow ; 

 spines crowded, acute, short, mycelium white, scanty or sometimes 

 almost obsolete. 



Distinguished from its nearest ally, H. sepuUum, in the exceedingly 

 scanty flesh and in the absence of a persistent, white, barren margin. 



On stones buried among pine leaves, etc. 



H. spathnlatum. — Sul)stance yellowish white, effused, mem- 

 branaceous, separable, circumference fringed, under surface downy ; 

 spines flattened, oblique, orange. 



