318 PROCEEDINGS OP THE AMERICAN ACADEMY. 



Laboulbenia pallescens nov. nom. 



Laboulbenia pallida Thaxter. Proc. Ain. Acad, of Arts and Sci. 

 xxxviii, p. 49. 



By an oversight the preoccupied name pallida was used for this species, 

 which occurs on species of Clivina in the Central American region. 



Coreomyces curvatus nov. sp. 



Nearly hyaline, or but faintly tinged with brownish. Receptacle 

 becoming narrow toward the small basal cell, the two cells above the 

 latter subequal in length, the appeudiculate cells usually four, broader 

 than long, subequal or the lower shorter. Stalk-cell of the perithecium 

 relatively long, slightly or not at all inflated ; the base of the perithecium 

 often slightly inflated, the upper third or more bent abruptly outward, 

 tapering to the blunt curved apex, the concave side of which is edged 

 with amber-brown, the convex marked by slight indentations due to the 

 prominence of the persistent wall-cells in this region. Appendages as in 

 L. Corisae, for the most part distinctly shorter. Spores 55 X 4 p. Peri- 

 thecium 130-140 X 36 j.i, its stalk-cell 70 X 25 p. Total length, average, 

 about 350-360 /x. Appendages about 125 /«. 



On under side of margin of left elytron of two species of Corisa. 

 Near Fresh Pond, Cambridge. 



Ceratomyces falcifera nov. sp. 



Allied to C. furcatus, hyaline, the inner margin of the perithecium and 

 the base of the appendage suffused with amber-brown, becoming blackish 

 and opaque below the appendage. External margin of the perithecium 

 nearly straight, the inner strongly convex ; the pointed tip curved to the 

 base of the large, long sickle-shaped, external, subterminal, perithecial 

 appendage, which consists of about twenty-five to thirty superposed cells, 

 and is curved outward. Receptacle consisting of three superposed cells, 

 surmounted by two cells from which the perithecium and antheridial 

 appendage arise ; the latter consisting of six or more cells, bearing 

 branches like those of the other allied species on Berosus. Spores 

 55 X 4^. Perithecium 125-150 X 55-65^, its appendage 435-470 x 22 p.. 

 Receptacle 90-110 X 35 ll. Appendage, without branches, 110-125 ll. 

 Total length to tip of perithecium 250 ll. 



On left inferior margin of abdomen of Berosws sp., Java; Rouyer, 

 No. 1393. 



