94 PROCEEDINGS OF THE AMERICAN ACADEMY. 



covering continuous over all its parts with the exception of the pore 

 of the perithecium and certain portions of the sexual organs, its 

 formation being independent of the cell divisions which take place 

 inside it. 



The new forms described below include a portion of the novelties 

 collected during the past summer, and are distributed among the genera 

 as follows : Ceratomyces, two species ; Teratomyces, two species ; 

 Cantharomyces, one species ; Peyritschiella, one species ; Dichomyces, 

 two species ; Heimatomyces, one species ; Dimorphomyces, one species ; 

 while the four new genera described, Sphaleromyces, Moschomyces, 

 Camptomyces, and Compsomyces, include each a single species. As 

 in previous" instances, the writer is indebted to the kindness of Mr. 

 Henshaw for the determinations of hosts. 



Ceratomyces humilis, nov. sp. 



Hyaline becoming faintly tinged with brownish. Perithecium 

 rather narrow, without any appendage, the apex blunt or nearly 

 truncate, its cell rows composed of not more than seven cells. Re- 

 ceptacle composed of from two to five superposed squarish cells. 

 Appendage consisting of six to twelve superposed cells, the series 

 tapering distally and producing irregularly from its inner face 

 branches which may in turn be several times branched and may reach 

 a length twice that of the perithecium. Spores 22 X 3 fi. Perithecia 

 100 X 25 p. Total length to tip of perithecium 150-185 ju. Longest 

 branches of appendage 180 p. 



On legs and at the edges of the elytra of Berosus striatus Say. 

 Kittery Point, Maine. 



A somewhat insignificant species allied to C. contortus, from which 

 it is easily distinguished by its small size and by the absence of any 

 appendage near the tip of the perithecium. It occurs more fre- 

 quently between the terminal claws of the middle pair of legs, but is 

 rarely found on the elytra. In two specimens the perithecia have 

 become distinctly tinged with brown, but as a rule the whole plant 

 is hyaline. 



Ceratomyces terrestris, nov. sp. 



Nearly hyaline with black or dark brown suffusions. Perithecia 

 large,' slightly inflated, tapering to a bluntly rounded or truncate apex 

 from which the sharply pointed lips project : the wall of the perithe- 



