288 OUTLINES OF BKITISH FUNGOLOCiV. 



pale yellowish-ferruginous, opaque. = Sowerby's Boletus 

 impiiber^ t. 195. 



On trunks. Rare. 



** Substance v-hite. 



44. P. fumosus, Fr. (p. 21-3) ; 2-4 in. 



45. P. adustus, Ft. (p. 243). Eppiug Forest. 



46. P. erispus, Fr. (p. 243). 



47. P. amorphus, Fr. (p. 213). 



48. P. adiposus, Fr. (p. 243). Epping Forest. 



49. P. Keithii, B. and Br. ; \ in. ; shell-shaped, stem- 

 less, decurrent behind; pileus bright red-brown, rough 

 with rigid tooth-shaped processes ; hymenium pallid ; dis- 

 sepiments lacerated. 



On fallen sticks. Dunphail. 



3. Spongiosi. — At first and whilst moist spongi/, when dry firm, 

 elastic, for the most part hristhj -hispid, internally fihroubs ; flesh 

 commonly presenting an intermediate stratum more compact 

 than tlie exterior ; firm ; annual ; autumnal ; finest examples on 

 living trunks. 



* Substance coloured. 



50. P. hispidus, Fr. (p. 213) ; 4-6 in. Epping Forest. 



51. P, cuticularis, i^/-. ; pileus ferruginous-fuscous, then 

 blackish, thin, spongy-fleshy, then juiceless, becoming 

 plane, hairy, tomentose, internally laxly composed of paral- 

 lel fibres, margin fibroso-fimbriate, incurved ; pores minute, 

 long, pallid then ferruginous. — Bull. t. 462. 



On trunks. Epping Forest. Burnham Beeches. 



** Siibstaiice white. 



52. P. spumous, Fr. ; 3 in. 



53. P. borealis, Fr. ; pileus 2 in., white then yellowish, 

 spongy then corky, compact, somewhat pulvinate, hairy, 



