OLIGONEMA 281 



The range is wide, probably coextensive with the forests of the 

 country. Specimens are before us from New England, Canada, 

 Montana, and all intervening regions, and south to the Gulf of Mex- 

 ico; California, Nevada, — Prof. Bethel. Yosemite, shores of Mirror 

 Lake! 



4. Oligonema fulvum Morgan. 



1893. Oligonema fulvum Morgan, Jour. Cin. Soc, p. 42. 



Sporangia large, sub-globose, sessile, or crowded, more or less reg- 

 ular; the peridium tawny yellow, or olivaceous, very thin and frag- 

 ile, iridescent ; mass of capillitium and spores tawny-yellow, elaters 

 simple or sometimes branched, very short, sometimes with thicker 

 swollen portions, the surface marked with low smooth spirals, in 

 places faint and obsolete, the extremities rounded and obtuse, usually 

 with a minute apiculus; spores globose, minutely warted, 10-13 fi. 



This species may be recognized by its tawny, irregular, more or 

 less crowded sporangia. Under the lens the warted, not reticulate, 

 spores are diagnostic. The elaters are quite constantly marked by 

 imperfect spirals. 



Our specimens are from the author of the species, and so far there 

 are none reported from outside Ohio. 



