cm BRA RI A 219 



nodes are not expanded. The spores are pale by transmitted light, 

 spinulose, about 6 ix. Plasmodium lead-colored. Found sometimes 

 in large patches on rotten logs of various species. Not uncommon, 



Cf. Lindbladia effusa. 



New England, New York, Pennsylvania, South Carolina, Ohio, 

 Illinois, Iowa, Washington ; Canada. 



2. Cribraria macrocarpa Schrader. 



Plate XVII., Fig. 2. 

 1797. Cribraria macrocarpa Schrad., Nov. Gen. Plant., p. 8. 



Sporangia more or less closely gregarious, yellowish brown, pear- 

 shaped or obovate, large, .8-1 mm. in diameter, stipitate ; stipe brown 

 furrowed, erect or often nodding, about equal to the sporangium 

 or longer; calyculus distinct, marked by numerous dark brown radi- 

 ating ribs, iridescent, perforate above, deeply dentate, and merging 

 gradually into the elegant network, of which the dark nodes are 

 more distinctly expanded about half way up, less so at the apex and 

 below, the filaments exceedingly delicate, simple, with occasional 

 free ends projecting into the small meshes; spore-mass yellowish, 

 spores by transmitted light almost colorless, minutely roughened, 

 5-6 II. 



Perhaps the most striking characteristic of the present species, 

 aside from its large size, is the peculiarly perforated cup or calyc- 

 ulus. Schrader's artist failed him here completely. The structure 

 is exceedingly delicate, the peridium between the ribs and reticula- 

 tions reduced to the last degree of tenuity, with the iridescence 

 of the soap-bubble, here and there lapsed entirely. Withal the struc- 

 ture seems firm enough and persists until all the spores are dissipated 

 by the wind. 



Easily distinguished from the preceding, its only rival in size, by 

 the obovate or turbinate, netted sporangium, its much longer stem, 

 and flat, perfectly formed nodes. 



Rare. New York, North Carolina, South Carolina, Oregon ; 

 Toronto, Canada. 



