Neiu North American Fungi. 



45 



two (1-3) spores on short blunt pedicels; spores globose, ochraceous, 

 16-20 mic. in diameter. 



Growing on rotten oak trunks, Preston, Ohio. The hyphoe are 

 remarkable for the clamp-connections which are present at every 

 septum, even next the spores, and when these fall off the clamp- 

 connection persists on the pedicel. 



24. Mycogone cinerea. — Effused, thin, at first white and 

 flocculose then cinereous or argillaceous and pulverulent; hyphae 

 slender, hyaline, branched, intricate, pro'ducing the spores at the apex 

 of short lateral branches. Spores composed of two unequal globose 

 cells, the lower and smaller one hyaline and projecting scarcely half 

 way from the larger, sometimes nearly hidden within it, the larger 

 cell cinereous and densely spinulose; whole length of the spore 

 15-20 mic, diameter of the smaller cell 5 8 mic, of the larger 13-17 

 mic 



Growing on Helvella elastica Bull. The spores are much smaller 

 than in Mycogone cen'ina, Ditm. There appeared on the same threads 

 fusiform hyaline microconidia, 3-septate 18-25x4-5 mic. 



