1926] 



BURT THELEPHORACEAE OF NORTH AMERICA. XV 243 



C . furfuraceum may be recognized on the substrata given by the 

 very thin, closely adnate fructifications of ivory-yellow to pinkish 

 buff color, which crack slightly by contraction in drying and have 

 small spores. 



Specimens examined: 

 Montana: Evaro, /. R. Weir, 439 (in Mo. Bot. Gard. Herb., 



63714); Missoula, J. R. Weir, 4OI, 409 (in Mo. Bot. Gard. 



Herb., 11316,63717). 

 Idaho: Coolin, /. R. Weir, 17211, type, 16764 and 16927 (in Weir 



Herb.). 

 British Columbia: Kootenai Mountains, near Salmo, /. R. Weir, 



481, 501, 526 (in Mo. Bot. Gard. Herb., 63725, 63716, 63715). 

 Washington: Kalama, C. J. Humphrey, 6225. 



53. C. lividum Persoon, Obs. Myc. 1: 38. 1796; Fries, 

 Epicr. 563. 1838; Hym. Eur. 652. 1874; Berkeley, Outl. Brit. 

 Fung. 275. 1860; Sacc. Syll. Fung. 6 : 623. 1888; Massee, Linn. 

 Soc. Bot. Jour. 27: 152. 1890; Bourdot & Galzin, Soc. Myc. Fr. 

 Bui. 27: 253. 1911; Rea, Brit. Basid. 680. 1922. 



Thelephora livida Persoon, Myc. Eur. 1: 148, 1822; Fries, 

 Syst. Myc. 1 : 447. 1821 ; Elench. Fung. 1 : 218. \%2d>.~PhleUa 

 livida (Pers.) Bresadola, I. R. Accad. Agiati Atti HI. 3: 105. 

 1897. — Grandinia ocellata Fries, Epicr. 527. 1838; Hym. Eur. 

 626. 1874; Sacc. Syll. Fung. 6: 501. 1888.— An Carticium 

 hepaticum Berk. & Curtis, Grevillea 1: 180. 1873? 



Fructifications broadly effused, agglutinated, sometimes be- 

 coming rather thick, somewhat waxy-gelatinous, not separable, 

 varied in color, gray or tinged reddish or bluish, becoming pale 

 smoke gray, cinnamon-buff, and raisin-black in the herbarium, 

 pruinose, even or sometimes radiately wrinkled or tuberculate by 

 aggregations of imbedded crystalline matter, the margin thinning 

 out, similar or whitish; in section 100-500 [x thick, not colored 

 usually, rarely slightly brownish, composed of densely inter- 

 woven, suberect hyphae about 2-3 [l in diameter, with the walls 

 gelatinously modified and glued together; no gloeocystidia; 

 spores hyaline, even, 3-5 X 13^-2 \i. 



Fructifications 2-10 cm. long, 1-5 cm. wide. 



On rotting logs, usually decorticated, of coniferous species, 



