[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 ^ 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 j*; spores few, 

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



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 longitudinally 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. Gard. 



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 buff in the herbarium, not cracked, the margin concolor- 

 ous, thinning out; in section 175-250 (x thick, not colored, 2- 

 layered, the layer next to the substratum about 75 y. thick, con- 

 sisting of densely interwoven hyphae about 2J/2-3 n in diameter, 

 not showing characters clearly in the type; hymenial layer 100- 

 150 \l thick, composed of densely arranged hyphae, gloeocystidia, 

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

 6 X 5 [i, 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. 



