[Vol. 13 

 252 ANNALS OF THE MISSOURI BOTANICAL GARDEN 



rather thick, fleshy-membranaceous, separable when moist, 

 cream color to cream-buff in the herbarium, somewhat velvety 

 or fibrillose, not cracked, the margin concolorous, fimbriate; in 

 section 400 ;x thick, not colored, with hyphae next to the sub- 

 stratum longitudinally and densely arranged, thick-walled, not 

 incrusted, not nodose-septate, curving outward obliquely into the 

 hymenium; gloeocystidia numerous in the hymenium and sub- 

 hymenium, clavate or cylindric, 60-120 X 9-12 [i; spores few, 

 even, hyaline, not seen attached to basidia, 9-11 X 6-7 jx. 



Fructifications at first 2-3 mm. in diameter, becoming con- 

 fluent into a mass 2 cm. long, 5 mm. wide. 



On very rotten wood. Mexico. January. 



On account of the loose attachment of the fructification to the 

 substratum and the broad layer of longitudinallj^ arranged hyphae 

 it is possible that C. mexicanum may be the resupinate stage of a 

 Stereum, but if so, it is distinct from any Stereum known to me. 



Specimens examined: 

 Mexico: Xuchiles, near Cordoba, W. A. & E. L. Murrill, 1196, 



type, comm. by N. Y. Bot. Gard. Herb, (in Mo. Bot. Card. 



Herb., 54604). 



62. C. epigaeum Ell. & Ev. Jour. Myc. 1: 88. 1885; Sacc. 

 Syll. Fung. 6: 631. 1888. 



Type: in N. Y. Bot. Gard. Herb. 



Fructifications effused, thin, membranaceous, tender, small 

 pieces separable when moistened, white, becoming somewhat 

 pinkish bufT in the herbarium, not cracked, the margin concolor- 

 ous, thinning out; in section 175-250 [jl thick, not colored, 2- 

 layered, the layer next to the substratum about 75 [x thick, con- 

 sisting of densely interwoven hyphae about 23^2-3 [x in diameter, 

 not showing characters clearly in the tjT)e; hymenial layer 100- 

 150 [i. thick, composed of densely arranged hyphae, gloeocystidia, 

 and basidia; gloeocystidia elongated; spores hyaline, even, 53^- 

 6 X 5 [JL, confined to hymenial surface. 



Fructifications 2-5 cm. long, 1-3 cm. wide. 



On bare ground and rotten wood on the ground. New Hamp- 

 shire to British Columbia, Washington, and Oregon. August to 

 April. Rare. 



