224 



POLYPOREI. 



Pores rather large, ^ in. broad. B. & Br. Spores oval, white, 14x7 mk. 

 W.G.S. Name serpens, creeping. Fr. Hym. Eur. p. 586. Icon. t. 182. f. 

 3. Polyporus Stephensii B. <r Br. n. 356. Berk. Out. p. 252. C. Hbk. n. 

 818. Saund. & Sm. t. 45. f. 8-12. 





GENUS XXVI. Dsedalea (Sof5o\os, curiously wrought. From 

 the elaborate hymenium). Pers. Syn. p. 449. 



Pores firm, when fully grown sinuous, labyrinthine ; in all other 



respects agreeing with Trametes. 

 Growing on wood, becoming hard, 

 the floccose substance descending un- 

 changed into the trama. Fr. Hym. 

 Eur. p. 586. 



* Corky-woody, dimidiate, sessile. 

 * Coriaceous, dimidiate, sessile. 

 *** Resupinate. 



* Corky-woody, dimidiate, sessile. 



1. D. quercina Pers. Pale wood- 

 colour. Pileus corky, rugulose, un- 

 even, zoneless, rather smooth, of the 

 same colour internally, at first por- 

 One . ous; the pores then take the form 

 of sinuses which are somewhat 

 contorted or lamellose, becoming 

 at last labyrinthine, edge obtuse. 



There are many varieties effuso-reflexed : Schccff. t. 231 ; wholly resupin- 

 ate : Bull. t. 352.7. F. Pers. Klyc. Eur. t. 18.7. i. 



On dead oak. Frequent. June-Nov. 



Perennial. Pileus 12.5-15 cent. (5-6 in.) broad. Pores 2 mm. (i lin.) or 

 more broad. Sometimes resupinate or decurrent and the partitions elongated 

 into tooth-like processes. M.J.B. Name quercus, oak. Pers. Syn. p. 500. 

 Fr. Hym. Eicr. p. 586. Berk. Out. p. 254. /. 19.7 5- C. Hbk. n. 825. S. 

 Mycol. Scot. n. 779. Grev. t. 238. Krombh. t. 5.7 i. 2. Bail. t. 31. Sow. 

 t. 181. Bolt. t. 73. Bull. t. 352, 442.7 i. Vent. t. 60.7 i, 2 (var.) 



2. D. aurea Fr. Golden. Pileus 5 cent. (2 in.) broad, corky- 

 coriaceous, gibbous, velvety, somewhat zoned, unicolorous, in- 

 ternally, as well as the hymenium which is porous then narrowly 

 sinuato-labyrinthine, light yellow. 



Pileus triangular, margin swollen. 



On dead oak. Hereford. 



Imbricated, the veins for the most part straight and radiating. B. & Br. 



LXIX. D&dalea qitercina. 

 fourth natural size. 



