30 PROCEEDINGS OF THE AMERICAN ACADEMY. 



basal cell of outer appendage large, longer than broad; its subbasal 

 cell slightly smaller, and normally bearing two long branchlets, both 

 simple, or the outer once branched : basal cell of the inner appendage 

 very small, bearing a branch on either side which may be simple or 

 once branched and bearing scanty antheridia; all the branchlets 

 becoming tinged with olivaceous, especially at the base and externally, 

 the longest sometimes twice as long as the perithecium or even longer. 

 Perithecium four fifths or more free, rather narrow, the venter but 

 slightly inflated; the tip hardly distinguished, broad; the apex broad, 

 rounded or subtruncate, externally unevenly oblique, hyaline about 

 the pore, beside which one of the lip-cells usually forms a distinct, 

 though minute prominence. Perithecium 70-90 X 25-30 ll. Re- 

 ceptacle 85-125 X 25-30 ll. Appendages, longest, 150 /jl; in one 

 young specimen 227 /jl. Total length to tip of perithecium 125-210 fx, 

 average 175 ju. 



On Haltica sp. Kamerun (Schwab), No. 2449 (type): on Systena 

 Dcyrollei Boh., Port of Spain, Trinidad, No. 2467. 



The specimens from Kamerun and Trinidad do not appear to differ 

 essentially. The species is not distinguished by striking peculiarities, 

 but does not seem referable to any described form. The material is 

 abundant and in good condition. A small percentage of the specimens 

 from Kamerun are of the ' Laboulbcniclla' type, cells III and IV being 

 replaced by a single cell. This does not seem to be the case, however, 

 in the material from Trinidad. 



Laboulbenia Nodostomae nov. sp. 



Short and stout. Cell I slightly longer than cell II which is slightly 

 longer than broad, its anterior margin strongly convex; cell III broader 

 than long, shorter than cell IV; cell V small triangular, cell VI some- 

 what smaller than cell II; cells II-V dirty yellow, deeply tinged with 

 brown, the rest' dirty yellow; the walls, only, tinged with brown. 

 Insertion-cell broad thick and blackish; appendages almost or quite 

 hyaline. Basal cell of the outer appendage somewhat longer than 

 broad; bearing distally two simple branches, obliquely related, the 

 outer stout tapering, elongate and incurved; basal cell of the inner 

 appendage about half as large as that of the outer, producing a single 

 simple short stout branch on either side, each with one or two antheri- 

 dia at the base. Perithecium a little less than one third free, rather 

 short and stout, dark blackish olive, paler below, and subterminally; 



