POLYPOREI. 



285 



Forming scattered orbicular white, or at length confluent resupinate patches 

 about half an inch in diameter, which are sometimes slightly reflected with 

 the free surface tomentose. Pores rather large, l-20th in. broad, nearly 

 equal, angular, sometimes sub-hexagonal ; edge even, tomentose.— -S. cD 5/-. 

 Spores very large, oval, white, "00055 X '00025 in. 



819. Folyponis Vaillantii. Fr, '* Vaillant's Polyporus." 



White, thin, mycelium free, forming strings, or united in a 

 membrane; pores here and there conglomerated, short, rather 

 large, thin, unequal. — Fr. Epicr.p. 487. Sow. t. 326. Eng. Fl. 

 V. p. 14:1 . Vaill. t.S,f.l. 



On dead wood. Rare. Glasgow. [Up Carolina.] 



Forming a thin, white, or slightly rufescent, byssoid, broadly effused, close 

 membrane, here and there traversed by rooting ribs. -Fries- 



820. Polyporus hytridus. B.kBr. " Dry-rot Polyporus." 



Wliite, mycelium thick, forming a dense membrane or creep- 

 ing branched strings, liymenium breaking up into areae ; pores 

 long, slender, minute. — Berk. Outl. xvii. Boletus hyhridus, Sow. 

 t. 289, 3«7, /. 6. 

 On oak in ships, &c. The dry rot of our oak-built vessels. 



Gen. 21. 



TRAMETES, Fr. 





j.'y/'^<" 



Fig. 66. 



Hymenophore descending into the 

 trama of the pores without any 

 change, which are permanently con- 

 crete with the pileus. Pores entire. 



(Fig. 66.) 



Hymenophore descending unchanged 

 into the trama of the pores, which is per- 

 manently similar to the substance of the 

 pileus. Pores concrete with the pileus, 

 at first very small, then open, obtuse, en- 

 tire, equal, round or linear, not labyrinthi- 

 form, or lacerated. Corky or woody fungi, 

 arboreal, always dimidiate, at first gene- 

 rally fragrant, and never acid. 



821. 



Trametes pini. Fr. " Fir-trunk Trametes." 



Pileus corky or woody, pulvinate, concentrically sulcate, cracked 

 and pitted, rough, ferruginous brown, then blackish, tawny fer- 



