172 PROCEEDINGS OP THE AMERICAN ACADEMY. 



faintly and uniformly tinned with smoky brown, normal except that cell 

 V is pushed up ••veil beyond the hyaline unmodified insertion-cell which 

 becomes thus external to it. Appendages recalling those of A. variabilis, 

 typically consisting of an inner and an outer basal cell, the outer bearing 

 ugle oblique or nearly vertical more or less irregular row of branches 

 arising antero-posteriorly ; the inner basal cell bearing a similar row on 

 either Bide, ;ill tin- branches hyaline or yellowish brown, more or 

 copiously branched; the lower cells somewhat inflated, the septa black- 

 ened, often oblique, 1 1 1 « - basal cells of the branches bearing distally and 

 externally from one to three obliquely Buperposed branchlets with 

 blackened septa, which may branch again; the ultimate branchlets taper- 

 ing slightly, the septa transverse and hyaline, usually cohering in an erect 

 mass. A third group of branches similar to the rest Bometimes ari 

 between these and the perithecium, apparently from the distal portion of 

 cell V. Perithecia L40-200 X 55-60 </. Total length to tip of perithe- 

 cium 475-875 ft ; to insertion-cell -1OO-7U0 ft. Appendages, Longest about 

 175 u. 



On Dercylus tenebriosus Laf. (= Eurysoma tenebrioides?), Hope Coll. 

 No. 328, Para; Brit Mus. No. 586, "S. America." Margin of right 

 elytron. 



Laboulbenia distincta nov. sp. 



Perithecium short and broad, wholly united to the receptacle except 

 t In- tip, clear dark l»rown, darker distally, the tip large, blackish, Boraewhat 

 compressed, the lips translucent smoky brown, not prominently distin- 

 guished. Receptacle short and stout, the distal portion larger than the 

 basal; cells I, II, and VI transparent yellowish, the rest smoky brown, 

 marked by closely set fine transverse lines: cells III and I V relatively 

 very large, subequal. Insertion-cell two thirds as broad as cells [V— V. 

 Outer appendage consisting of three superposed flat cells, hyaline becom- 

 ing dark hrown, the two lower larger and nearly equal, the middle cell 

 producing a single branch curving upward from its inner side, the third 

 cell producing a similar branch from its inner side and a terminal branch 

 Which is deep hrown curved outward and upward. Blender, simple; the 

 inner branches of the three cells all at lirst hyaline, mostly once branched, 

 later developing a dark hrown contrasting suffusion above their basal 

 cells: the inner appendage consisting of a small basal cell producing a 

 branch on either side the basal cell of which is larger than thai of the 

 appendage, and bears two branchlets basally suffused with hrown like 

 those of the outer appendage. lYrithecia 180 < 50/i. Total length to 



