OF ARTS AND SCIENCES. 165 



guished by the inflated basal cell of the outer appendage. More 

 abundant material may show that the measurements of the appendages 

 given are too small. 



Laboulbenia filifera, nov. sp. 



Perithecium tinged with olive-brown, the apex deeply blackened, 

 broad, more or less evenly rounded, often symmetrical. Appendages 

 consisting of two basal cells, the inner minute, the outer large, usually 

 followed by a sub-basal cell from which arise two very elongate simple 

 erect branches, at first dark brown above their nearly hyaline basal 

 cells. The inner appendage consists of one or two short hyaline fer- 

 tile branches, one of which may be long and sterile. The insertion 

 cell placed between the two lower thirds of the perithecium. Recep- 

 tacle short, about equalling the perithecium in length, the inner mar- 

 gins abruptly divergent above cell (2). Spores about 50 x 4 /i. 

 Perithecia, average 25 X 90 /x. Appendages, longest 550 /x. Total 

 length to tip of perithecium 150-190 /x. 



On elytra of Anisodactylus Harrisii Lee, A. nigerimus Dej., and 

 A. interpunctatus Kirby, Maine, Massachusetts, Pennsylvania. 



Laboulbenia compressa, nov. sp. 



Pale yellowish. Perithecia becoming tinged with olive-brown, the 

 lips compressed to form an evenly rounded apex, which is commonly 

 bent slightly outwards and blackish brown except about the pore, 

 which is external and lateral. Appendages consisting of two basal 

 cells, the outer much the largest, bearing a single appendage usually 

 once branched, the lower cells slightly inflated, the ultimate branches 

 straight and tapering. From the inner basal cell arise several branches, 

 some short and fertile, others resembling the longer outer appendage. 

 Insertion cell placed just below the middle of the perithecium. Recep- 

 tacle normal, the basal cell usually curved. Spores 50 x 3.7-4 fx. 

 Perithecia 85-100 x 30 /x. Appendages, longest 150-200 /x. Total 

 length to tip of perithecium 175-260 /x, average 210 /x. 



On elytra and at base of middle pair of legs of Anisodactylus balti- 

 morensis Say, Maine. 



Easily separable from other forms by its peculiarly pointed 

 perithecium. 



Laboulbenia polyphaga, nov. sp. 



Perithecium slender, the outer edge nearly straight, with a more or 

 less well marked prominence below the apex ; the tip prominent, 



