180 PROCEEDINGS OF THE AMERICAN ACADEMY. 



prominence while the other grows out into a large prominent brown blunt- 

 tipped tooth-like projection which becomes bent slightly outward and 

 sideways. Receptacle rather long and slender, suffused with brown, 

 the darker distal portion marked by fine transverse indistinct striations. 

 The basal cells of the appendages more or less indistinguishable and 

 giving rise to indistinct prominences bearing numerous branches, the 

 basal cells of which are short, inflated distally, and bear a terminal and 

 external series of closely septate branchlets ; the latter once or twice 

 branched, the septa dark, the whole forming a dense tuft about half as 

 long as the perithecium. Spores 60 X 6 /x. Perithecium 200 X 70 /x. 

 Total length to tip of perithecium 550 n ; to insertion-cell 400 p.. Longest 

 lip-prominence 35 fi. 



On Dineutes? sp., Brit. Mus. No. 486, Timor, E. Indies. Elytra. 



Laboulbenia imitans nov. sp. 



Perithecium free, long, rather slender, curved slightly outward, suffused 

 with dark smoky brown, tapering rather abruptly to a somewhat trun- 

 cate tip, the inner lip-cells darker, the basal cells forming a hyaline 

 well developed neck. Receptacle short, stout, subtriangular, usually 

 abruptly bent above the basal cell, becoming deeply suffused with 

 blackish brown, coarsely and conspicuously punctate, except where quite 

 opaque, the opacity first involving the anterior and lower portions above 

 the hyaline basal cell : cells IV and V nearly equal, cell IV bulging 

 outward more than half its upper surface, being free from and external 

 to the black insertion-cell. Appendages not reaching the tip of the 

 perithecium ; the outer consisting of a hyaline basal cell which gives rise 

 to an antero-posterior series of rigid rather slender slightly incurved 

 branches about six in number, arising from a deeply blackened ridge of 

 insertion ; the branches becoming deeply suffused with blackish brown, 

 except along their inner margins, closely septate, the lower cells giving 

 ri?e distally and inwardly to secondary branches similar to the primary 

 ones and often developing short hyaline branchlets in a similar fashion. 

 The inner appendage consisting of a basal cell which gives rise on either 

 side to a series of from two to three branches similar in character to 

 those of the outer appendage : the whole forming a somewhat crest-like 

 dense tuft. Spores 42^ long. Perithecium (exclusive of neck) 150- 

 155 X 28/x; the neck 20-30 X 20 fi. Total length to tip of perithecium 

 270-340 ;x; to insertion-cell 100 /i ; greatest width 50^. Appendages, 

 average 45 fi long. 



