1920] 



BURT THELEPHORACEAE OF NORTH AMERICA. XII 123 



Nebraska: Lincoln, Miss L. B. Walker, 7 (in Mo. Bot. Gard. 



Herb., 44818). 

 North Dakota: Fargo, F. J. Seaver, 25, 54 (in Mo. Bot. Gard. 



Herb., 16222, 16637). 

 Montana: Helena, F. W. Anderson, 202 (in Mo. Bot. Gard. 



Herb., 21165). 

 Colorado: Blind Canon Placer, C. L. Shear, 1021; Golden, E. 



Bartholomew & E. Bethel, in Bartholomew, Fungi Col., 



2716, and E. Bethel & L. 0. Overholts, comm. by L. 0. 



Overholts, 1754 (in Mo. Bot. Gard. Herb., 54875); Ouray, 



C. L. Shear, 1187. 



32. S. Pini Fries, Epicr. 553. 1838; Hym. Eur. 643. 1874; 

 Sacc. Syll. Fung. 6: 574. 1888. Plate 4, fig. 28. 



Thelephora Pini Fries, Syst. Myc. i: 443. 1821; Elenchus 

 Fung, i : 187. 1828. Sterellum Pini (Schleich.) Karsten, Finska 

 Vet.-Soc. Bidrag Natur och Folk 48: 405. 1889. 



Illustrations: Smith, Brit. Basidiomycetes, textf. 98 E, F. 



Fructifications gregarious, coriaceous-cartilaginous, orbic- 

 ular, resupinate, with the margin free and attached by the 

 center, shield-shaped, finally bullate, drying rigid, Benzo-brown; 

 hymenium wood-brown to Benzo-brown, somewhat pruinose, 

 becoming somewhat 

 tuberculose; in struc- 

 ture 500 m thick, thin- 

 ning out towards the 

 margin, with the in- 

 termediate layer bor- 

 dered on each side by 

 a narrow, colored zone 

 and composed of lon- 

 gitudinally arranged, 



, ' Fig. 12. S. Pini. Fructifications, /, natural size; 



hyaline hyphae with cystidia, c, and gloeocystidia, g, X 665. 



walls gelatinously 



modified, the subhymenium olivaceous-colored; cystidia in- 

 crusted, 24X8 11, sometimes very few to be found; fusoid or 

 irregular gloeocystidia, 30-40X10-15 m> are sparingly present 

 in or near the hymenium; spores hyaline, even, curved, 5-6 

 X2-2 n. 



