65 



hypothallus, penetrating to the apex of the capillitium ; spores globose, 

 .0003 '-.00035' in diameter. 



Plant 2"-3" high, growiug ou living leaves of grass and herbs. 

 Albany. June. 



The color of this plant is almost the same as that of ;S'. ferruginea, 

 but the spores are much larger, surpassing even those of S.fiisca. 



Tricliia reniformis, Peck. 



Peridia gregarious or clustered, sessile, subglobose or reniform, small, brown ; 

 flocci few, short, sparingly branched ; spores globose, minutely echinulate, yel- 

 low-ochre, sometimes tinged with green, .0005' in diameter. 



Dead bark of striped maple, Acer Pennsylvanicum. Portvllle. 

 September. 



The branches and apices of the flocci are sometimes without 

 spiral markings and slightly nodulose. 



Perichaena flaTida^ Peck. 



Yellow throughout ; peridia crowded, clustered, sessile, variable in size and 

 shape, shining; flocci few, short, subnodulose, obtuse, sparingly branched ; 

 spores globose, enchinulate, .00045' in diameter. 



Mosses. Sandlake. August. 



The bright golden yellow color renders the clusters conspicuous. 



CONIOMYCETES. 



Dinemasporium Robiuiac^ Oerard. 



Perithecia cup-shaped, bristly, black ; spores hyaline, .0002' long, the termi- 

 nal bristles about as long as the spore. 



Dead wood of locust trees. Poughkeepsie, Gerard. 



Dinemasporium acerinum, Peck. 



Perithecia small, pezizoid, black, hispid with short straight scattered black 

 hairs ; spores unequally elliptical, .0003' long, the terminal bristles scarcely 

 one-third the length of the spore. 



Dry maple wood. Buffalo, Clinton. April. 



BUL. BUP. SOC. NAT. SCI. (9) JITXT, 1873. 



