236 DECADES OF FUNGI. 



Hab. On dead trunks. Panure. 



* T, Hydnoides, Yx, El. p. 490. 



Hab, In woods. San Carlos. August, 1853. 



« 



T. occidentalism Tr, El. p. 491. Spruce^ n. 39, 185. 



Hab. Ou dead wood in the neiglibourliood of cottages. Very com- 

 mon. Rivers Uaupes and Negro. February, 1853. 



589. T, sclerodepsis, n. s. ; pileo subtenui rigido suberoso dimidiate 

 piano albido-cinereo ; margine acuto, zonis crebris ccrvinis pieto, ra- 

 diato striato rugosuloque ; hymenio pallide umbrino convexiusculo ; 

 poris punctiformibus. Spruce, n. 167. 



Hab. On dead trunks. Panm-e. 



Pileus 8 inches or more across, 6 long, dimidiate, flat, rather thm, 

 hard and corky, dirty-white or ash-coloured, marked with numerous 



zones, those towards the margin broader and fawn-coloured, pruinose. 

 but not decidedly tomentose ; substance whitish. Hymenium rather 

 convex, pale umber ; pores punctiform, -^-^ of an inch across. 



Something in the style of T, occidentalism but far larger, more woody, 

 and free from any woolly coat. 



590, T, Sprucei^ n. s. ; pileo crassiusculo gibboso obtuso dcalbato; 

 contextu duro ; poris subrotundis subflexuosis ; dissepimentis obtusis. 



I —. 



Spruce, n. 166,-. 



Hab. On trunks of trees. March, 1853. Panure. 



Pileus 1 J-3 inches across, ^ an inch long, decurrcnt behind, gibbous, 

 obtuse, even or nearly so, opaque, white, as if whitewashed ; substance 

 hard, white ; pores about -gL of an inch broad, roundish, but slightly 

 flexuous; dissepiments rigid; edge obtuse. 



The habit of this species is peculiar. There is not the slightest 

 tendency to form gills. 



591. D(edalea Sp7'2tcei,n.^.'^ pileo suberoso subconvexo scabriusculo ; 

 margine zonato ; hymenio convexo ; poris flexuosis ; dissepimentis m - 

 lamellas ruptis. Spruce, n. 41. 



Hab. On dead trunks. Panure. ^ 



Pileus 5 inches or more across, dirty^-umber, corky, thin, slightly 

 rough, zoned towards the margin ; dissepiments of the elongated, flex- 

 nose pores brown-umber, soon broken up into lamelliforra processes. 



At a very early stage of growth, when the pileus is only an inch 

 across, the dissepiments are broken up, so as to present the true cha- 

 meters of BmJalen, to which genus the species must be referred. 



