19:^0] The Lower Basidiomycetes of North Carolina 159 



In drying the membrane shrinks much, to an almost invisible film ; 

 differs from No. 4119 in slate color, smaller basidia which are near the 

 surface, and in the closely packed threads of the flesh. Our plant 

 agrees rather closely with Burt's description of S. podlachica Bres. 

 in color, size of basidia and spores, position of basidia and closely 

 crowded threads of the context ; but he does not mention the crj'stals 

 in the hymenium or refer to the species on seeing our plant. 



4118. On decaying underside of piece of decorticated oak wood, New Hope 



Creek, February 14, 1920. Drawing. 



4. Sebacina sp. ? 



Plate 60 



Plant variable in thickness, usually about 400-500fi thick except 

 where nodulated or wrinkled, much thinner in areas; forming an ex- 

 tensive slick membrane with indefinite margin, usually between bark 

 and wood and between layers of the rotten wood, sometimes on surface 

 also of the rotten bark ; color pallid straw or clay or dull whitish ; 

 surface smooth, or nodulated and irregularly pitted and wrinkled; 

 texture waxy, not very tough or elastic ; threads of context looseh' 

 packed. The plant is not removable from the wood when fresh with- 

 out breaking it into pieces. 



Spores (of No. 4119, print) white, smooth, elliptic, 3.7-4.5 x 6-9. o/a. 

 Basidia oval, four-celled, 7.8 x 11/x. Paraphyses upright, closely 

 packed, branched near the surface into a few crooked forks on wliieh 

 are small crystals. 



4119. On decaying gum wood, near Xew Hope Creek, February 14, 1920. 



Drawing. ' 



5. Sebacina incrustans (Pers.) Tulasne 



We have not yet found this in Chapel Hill, but it probably oc- 

 curs here. It forms an irregular fleshy-leathery, butt" crust which 

 creeps up and around the ])ases of objects, often on grasses. Spores 

 white, 6-8 x 12-14ju,. For a full description see Burt. I.e. p. 752. See 

 also a photo by Lloyd in ^lyc. Notes 52: fig. 1115. 1917. 

 Asliivillc. Beardslee. 



(>. Sebacina Helvelloides (Sclnv.'! l^urt. 



This is much like S. iiicntshms, hut ililVcrs in its less fleshy struct- 

 ure and thicker liymcniuiii. Il grows on the ground among mosses 



