1920] 



BURT — THELEPHORACEAE OF NORTH AMERICA. XII 



131 



Mexico: Guernavaca, W. A. & E. L. Murrill, 4IO, 546, 547 (in 

 N. Y. Bot. Gard. Herb, and Mo. Bot. Gard. Herb., 54535, 

 54581, 54582). 



Japan: Kushiro, A. Yasuda, 64 (in Mo. Bot. Gard. Herb., 

 56136). 



35. S. Murrayi (Berk. & Curtis) Burt, n. comb. 



Plate 4, figs. 31, 32. 



Thelephora Murraii Berk. & Curtis, Linn. Soc. Bot. Jour. 

 10: 329. 1868; Grevillea i: 150. 1873; spelling of specific 

 name changed to Murrayi in Sacc. Syll. Fung. 6: 546. 1888. — 

 Stereum tuherculosum Fries, Hym. Eur. 644. 1874; Sacc. Syll. 

 Fung. 6: 586. 1888; Massee, Linn. Soc. Bot. Jour. 27: 204. 

 1890; Romell, Bot. Not. 1895: 70. 1895. — S. pulverulentum 

 Peck, Torr. Bot. Club Bui. 27: 20. 1900; Sacc. Syll. Fung. 16: 

 187. 1902. 



Illustrations: Lloyd, Myc. Writ. 5. Myc. Notes 62: pi. I48. 

 /. 1690. 1920. 



Type: in Kew Herb, and Curtis Herb. 



Fructifications corky, adnate, usually resupinate and broadly 

 effused, sometimes reflexed, the reflexed upper surface a hard, 

 horny crust, not shining, concentric- 

 ally sulcate, fuscous-black or aniline- 

 black, the margin entire; hymenium 

 drying from pale olive-bufT to avella- 

 neous, tubercular, deeply cracking; in 

 structure 300 /j. thick at first, then be- 

 coming stratose and thickening to 800 

 -2000 /JL, composed of densely inter- 

 woven, rather suberect hyaline hyphae 

 2|-4 n in diameter and of very numer- 

 ous, hyaline, pyriform vesicular organs 

 15-20X12-15 fi which are distributed 

 throughout the whole fructification; no 

 colored conducting organs nor cystidia; 

 spores white in spore collection, even, flattened on one side, 



4^-5X21/1. 



Resupinate specimens 1-10 cm. in diameter, becoming con- 

 fluent, reflexed part 3-10 mm. broad. 



Fig. 15. S. Murrayi. Sec- 

 tion of hymenial region X 

 488, showing vesicular bodies. 



