POLYPORUS. 207 



On dressed wood in conservatory. Glamis, 1877. Autumn. Poiyporus. 



Name — roseus, rose-colour. Fr. Hym. Eur. p. 562. Syst. Myc. i. p. 372. 

 B. & Br. n. 1801. S. Mycol. Scot. n. 737. — A. & S. p. 251. 



67. P. ulmarius Fr. — Pileus 7.5-10 cent. (3-4 in.) broad, in 

 the first season white, corky-woody, very hard, incrusted, tuber- 

 cular, becoming smooth, substance white. Pores round, stratose, 

 yellowish. 



A. first season, pileus white. Sow. t. 88. B. In succeeding seasons, pileus 

 blackish, margin tawny. Berk. Out. t. 16. f. 5. The two figures are so 

 unlike that one would scarcely suppose them to be allied. 



On old elm. Frequent. Sept. 



'Sa.me—ulmus, elm. Fr. Hym. Eur. p. 562. Syst. Mvc. \. p. 36^. Berk. 

 Out. p. 246. C. Hbk. n. 783. S. Mycol. Scot. n. 738. Hussey i. t. 64. Sow. 

 & Berk, quoted above. 



68. P. cytisinus Berk. — Large, 30 cent. (12 in.) or more across, 

 imbricated. Pileus coarsely tuberculated, hard, woody, margin 

 subacute. Pores minute, nearly white. 



Dimidiate, quite smooth at least when dry ; substance slightly zoned, very 

 thick and close, but composed of velvety fibres, pale, nearly white, evidently 

 composed of two or three successive layers. 



On laburnum. Rare. 



Name— cytisus, laburnum. Berk. Eng. Fl. v. p. 142. Out. p. 247. C.Hbk. 

 n. 785. S. Mycol. Scot. n. 739. Fr. Hym. Eur. p. 562. — Soiv . t. 288. 



69. P. connatus Fr. — Pilei white or cinereous, corky-woody, 

 effuso-reflexed, imbricated like the steps of a ladder, growing i?ito 

 each other, villous, internally white. Pores stratose, minute, 

 somewhat round, white. 



Increasing from season to season and distinctly stratose, pileus commonly 

 covered with mosses growing upon it. 



On old trunks, elm, crab-tree, &c. Frequent. Autumn. 



Running up trunks for 1 or 2 ft. M.J.B. Name — con, together; ?iatus, 

 born. Growing together. Fr. Hym. Eur. p. 563. Icon. t. 185./. 2. Berk. 

 Out. p. 248. C. Hbk. n. 789. S. Mycol. Scot. n. 740. Batt. t. 37./. G. 



6. Lignosi. Pileus from the first hard, woody, Sec. 



70. P. fraxineus Fr. — Pileus white then rubiginous and fus- 

 cous, corky-woody, smooth, somewhat plane, zoneless, at first 

 even, then concentrically sulcato-plicate, pallid within. Pores 

 minute, curt, rufous-ferruginous, at first, as well as the margin, 

 covered over with white greasy villous down. 



Variable in form, softer when young, but not fleshy, truly perennial. 



