1902] 



THREE NEW GENERA OF THE HIGHER FUNGI 



37 



seen specimens of Lepiota procera in which large areas on the 

 under side of the pileiis were destitute of lamellae. The addi- 

 tional characters of the fungus are to be found in the following 

 description : 



EOMYCENELLA Atkinson, n. gen.— Plants stipitate. Pileus 



campanulate to expanded, 

 consisting 



radiatinof branched threads 



of a layer of 



forming a more or less lat- 

 tice-like or trabecular, ex- 

 panded, thin structure; 

 trama wanting or very rudi- 

 mentary the subhymenium 

 arising directly from the 

 trabeculae of the pileus. 

 Hymenium plane, or in 



with a few^ 

 short, narrow, distant la- 



larger forms 



mellae not 



reaching 



the 



stipe; lamellae with rudi- 

 mentary trama, Basidia 

 clavate, 4-spored. Spores 

 smooth, l-celled, hyaline. 

 Stipe fleshy, delicate. At 

 maturity hymenium dis- 

 solving, leaying many of 

 the spores lying on an 

 amorphous layer against 



the trabeculae. One spe- entire plant; -5, pileus in older stage; ^, under 



Cies, on decaying leaves of ^^^^ ^^ P^^^"'' showing rudimentary gills in 

 7?h^^ J 7 . larirer plant ; d, detail of trabecule of pileus; 



^fiodod€7idron maximum, ^ f .„,;.. Koe;^^. .nH .nnr^s. 



P'iG. I . — Eomycenella ech inocepkala : a 



Blowing rock, N. C. 



e^ detail of basidia and spores 



Plants 



white, 3-8 """^ high. Pileus 0.5-0.75'"'" broad. Stipe 60-80 /x in 

 diameter. Plants campanulate to expanded and upturned in age, 

 trabeculae of upper surface echinulate, bearing here and there 



■^ 



