476 PROCEEDINGS OP THE AMERICAN ACADEMY. 



This sijecies may be distinguished by its rigid habit, straight single 

 outer api^endage aud the bluut suout-like apex of its peritheciuin. It 

 is one of the less well marked types of the genus, yet sufficient 

 material from the two localities mentioned indicates that its characters 

 are sufficiently well marked to warrant its specific separation from 

 other species of the flagellata type. 



Laboulbenia confusa, nov. sp. 



Becoming deeply suffused with smoky brown. Perithecium rather 

 small, inwardly inflated, the apex broad, slightly oblique outwards. 

 Appendages arising primarily from an inner and outer cell : the outer 

 bearing a second cell which bearS terminally a dense tuft of hyaline 

 flexuous tapering more or less divergent branches which are them- 

 selves more or less branched: the inner basal cell becoming several 

 times divided and giving rise to numerous branches densely crowded 

 and similar to the external ones. Receptacle consisting of a long 

 sub-cylindrical basal cell, the sub-basal cell shorter and broader, cells 

 (3-5) unusually large, causing this portion of the receptacle to bulge 

 outwards in an evenly rounded and characteristic fashion. Perithecia 

 166 X 55 /i.. Appendages (longest) 150 /x. Receptacle 215 yu long, 

 its basal cell 90-110 x 25-40 jx. Total length to tip of perithecium, 

 315 jx ; greatest width 75 fx. 



On Bembidium sp. Connecticut. 



This species although based on scanty material seems quite distinct 

 from its nearest allies, L. luxurians and L. compacta. Although the 

 general arrangement of the appendages is similar in the present 

 species, their flexuous divergent tapering habit is quite different from 

 those of the two forms just mentioned, from which it is also distin- 

 guished by its larger size and peculiarly shaped receptacle. It occurs 

 on the legs of a very small metallic-green Bembidium. 



Laboulbenia cornuta, nov. sp. 



Dark blackish brown. Perithecium tapering to a broad blunt apex, 

 from which projects a prominent straight dark brown appendage, 

 unicellular, bent abruptly outwards from its base, tapering slightly to 

 its nearly hyaline rounded tip. Appendages as in L. luxurians, the 

 branches fewer and stouter. Receptacle short, expanding somewhat 

 abruptly above the sub-basal cell, the basal cell becoming narrowed 

 and nearly hyaline towards its base. Perithecium 85 x 29 /x. Its 

 appendage 26 X 7 /x. Total length to tip of perithecial appendage 

 185 fx, greatest width 52 /x. 



