[Vol. 13 

 242 ANNALS OF THE MISSOURI BOTANICAL GARDEN 



Pmus Strobus and other conifers. In Europe and in Vermont, 

 Alabama, Idaho, and Washington. September and October. 

 Rare in North America. 



C. ochraceum somewhat resembles in general aspect C. lactescens 

 and is, in my opinion, related to the latter by hyphae in barely 

 the beginning of differentiation into gloeocystidia, C. ochraceum 

 of American plant lists is based on misdetermined specimens. 



Specimens examined: 

 Sweden: Femsjo, E. Fries, type (in Fries Herb.); North Sweden, 



L. Romell, 403; Smoland, E. Fries, authentic specimen of 



Corticium calceum var. argillaceum (in Fries Herb.). 

 Austria: Innsbruck, Tirol, V. Litschauer. 

 Italy: on Abies excelsa in Alps Mts., G. Bresadola. 

 Vermont: Middlebury, E. A. Burt. 

 Alabama: Montgomery, R. P. Burke, 606 (in Mo. Bot. Gard. 



Herb., 57471). 

 Montana: Rexford, E. E. Hubert, comm. by J. R. Weir, 12017 



(in Mo. Bot. Gard. Herb., 63373). 

 Idaho : Priest River, /. R. Weir, 59. 

 Washington: Hoquiam, C. J. Humphrey, 6373; Seattle, C. J. 



Humphrey, 6^54, and W. A. Murrill, 135, comm. by N. Y. 



Bot. Gard. Herb, (in Mo. Bot. Gard. Herb., 55737). 



52. C. furfuraceum Bresadola, Mycologia 17: 69. 1925. 



Type: in Weir Herb. 



Fructifications broadly efTused, closely adnate, thin, furfura- 

 ceous, ivory-yellow to pinkish buff in the herbarium, becoming 

 somewhat cracked, the margin thinning out, pruinate; in section 

 60-140 [X thick, not colored, composed of suberect, thin-walled 

 hyphae about 3 ;x in diameter, somewhat collapsed and irregular 

 in outline, indistinct, not incrusted; no gloeocystidia nor con- 

 ducting organs; spores hyaline, even, 4-5^^ X 234 t^. 



Fructifications more than 10 cm. long, for broken off at 

 both ends, 6 cm. wide. 



On decaying wood of logs of Abies grandis, Pinus monticola, 

 P. coniarta, P. ponderosa, and Larix occidentalis. Montana, 

 Idaho, Washington, and British Columbia. August and Sep- 

 tember. Probably conmion. 



