390 BRITISH FUNGI 



Allied to M. corium, but distinguished by tlie orange hymenium. 



On dead trunks, etc. 



M. carmicJiaeliantts. — White, very thin, adnate, wrinkles of 

 hymenium very slightly raised and forming a fairly regular net- 

 work ; patches 1--3 in. across. 



Very thin, differing from Poria in the \ery shallow pores. 



On dead bark, etc. 



M. serpens. — Crusty, adnate, inseparable from the matrix, pallid, 

 then reddish, edge byssoid ; hymenium with the wrinkles at first 

 free, then anastomosing and forming variously formed, very shallow 

 pores. 



On rotten pine wood. Extending in a wav}^ manner for 2 in. 

 or more. 



M. pallens. — Closely adnate, fleshy, somewhat gelatinous, thin, 

 not separable from the matrix, edge indeterminate ; folds of the 

 hymenium forming minute, shallow pores. 



On wood of fir, oak, etc. 



M. rufiis. — Closely adnate, often effused for 1-3 in., substance 

 smooth, soft, reddish flesh-colour, sometimes with a purplish tinge, 

 edge almost smooth ; hymenium distinctly and equally porous. 



General appearance and hymenium of a Poria, but differs in the 

 soft nature of the hymenophore. 



On dead wood. 



M. porinoides. — Thin, closely adnate, edge bj'ssoid, white ; hy- 

 menium dingy j^ellow, the folds or wrinkles forming small pores. 



Often forming patches 1-3 in. across. 



On dead wood, bark, chips, etc. ; also running o\-er the ground. 



M. himantioides. — Effused, very soft, silky, edge byssoid ; hy- 

 menium dingy yellow or with an olive tinge, folds irregular, forming 

 vague pores. 



Somewhat resembling M. lucryiiuuis, but the sul;stance is tliinner, 

 and not pulverulent. 



On pine wood, etc. Sometimes running over li\-ing plants, c]ul> 

 mosses, etc. 



Hydnace.e 



This family is well distinguished by the hymenium or spore- 

 bearing surface being covered with spines or warts, on which the 

 spores are borne. In the most highly developed forms, as Hydnum, 

 the spines are long and awl-shaped or like a porcupine's quill, 

 tapering to a sharp point, and in some instances |-i inch in length. 

 In other genera, instead of spines more or less flattened, plate-like 

 structures are present, resembling so many miniature planks pro- 

 jecting from the hymenium. Again, in the more primitive genera, 

 as Grandinia, Porothelium, etc., the hymenium is densely covered 

 with very minute rounded warts, only distinguishable under a good 



