1920] 



BURT THELEPHORACEAE OF NORTH AMERICA. XV 283 



Gard. Herb.); Victoria, J. Macoun, 577 (in Macoun Herb.); 



Vancouver Island, J. Macoun, 419 (in Mo. Bot. Gard. Herb., 



55315), and comm. by J. Dearness, V 35 (in Mo. Bot. Gard. 



Herb., 19573). 

 Washington: Bingen, W. N. Suksdorf, 714, 755 , 872, 886, 898, 



899, 901, 955, 961; Olympia, C. J. Humphrey, 6293, 6330; 



Seattle, A. M. Parker, 177 (in N. Y. Bot. Gard. Herb., and 



Mo. Bot. Gard. Herb., 61475). 

 Oregon: Seattle, W. A. Murrill, 988, comm. by N. Y. Bot. Gard. 



Herb, (in Mo. Bot. Gard. Herb., 55703). 



92. C. investiens (Schw.) Bresadola, I. R. Accad. Agiati Atti 

 III. 3: 110. 1897; Ann. Myc. 1: 95. 1903. 



Radulum? investiens Schweinitz, Am. Phil. Soc. Trans. N. S. 4: 

 165. 1832; Sacc. Syll. Fung. 11 : 112. 1895. Vararia investiens 

 (Schw.) Karsten, Krit. Ofvers. Finl. Basidsv. Tillag 3: 32. 1898. 

 Asterostromella investiens (Schw.) v. Hohnel & Litschauer, K. 

 Akad. Wiss. Wien Sitzungsber. 117: 1083. 1908. Corticium 

 alutarium Berk. & Curtis, Grevillea 2: 4. 1873; Sacc. Syll. Fung. 

 6: 634. 1888; Massee, Linn. Soc. Bot. Jour. 27: 137. 1890 

 Thelephora subochracea Peck, N. Y. State Mus. Rept. 46: 109. 

 1893; Sacc. Syll. Fung. 11: 116. 1895. Xerocarpus alutarius 

 (Berk. & Curtis) Karsten, Finska Vet.-Soc. Bidrag Natur och 

 Folk 48: 418. 1889. 



Type: in Schweinitz Herb., Farlow Herb., Fries Herb., and 

 probably in Kew Herb. 



Fructifications broadly effused, usually thin, tough, dry, 

 adnate, small pieces separable when moist, warm buff to light 

 orange-yellow, conforming to inequalities of the substratum, 

 somewhat tomentose, not cracked, the margin thinning out; in 

 section 150-600 \i thick, concolorous with the hymenium, com- 

 posed of a few even-walled, hyaline hyphae 2J/2 n- i diameter, 

 and of a great number of yellowish, stiff hyphae with dichotomous 

 and antler-shaped branching and short, acicular, prong-like 

 terminal branchlets, which extend beyond the basidia in the 

 hymenial surface; no gloeocystidia; basidia 4-spored; spores 

 hyaline under the microscope but slightly straw-colored in the 

 mass, even, 12 X 4 \l, tapering downward to the slender, apiculate 

 base. 



