1 v " PROCEEDINGS OF THE AMERICAN ACADEMY. 



prominence wliil. • the other grows nut into ;i large prominent brown blunt- 

 tipped tooth-like projection which becomes bent Blightly outward and 

 Bideways. Receptacle rather long and Blender, Buffused with brown, 

 the darker distal portion marked 1>\ fine transverse indistinct striatic] 

 The basal cells of the appendages more or less indistinguishable and 

 giving rise to indistinct promiuences bearing numerous branches, the 

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

 external scries of closely Beptate branchlets; the latter once or twice 

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

 long as the perithecium. Spores GO x 6 p. Perithecium 200 < 70 ft. 

 Total length to tip of perithecium 550 » ; to insertion-cell 1 (|| >^. Longest 

 lip-prominence 35 /*. 



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



Laboulbenia imitans nov. sp. 



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

 with dark smoky brown, tapering rather abruptly to a Bomewhat 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 tree 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 

 rise 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- 

 1.55 x 28 M ; the neck 20-30 x 20 /*. Total length to tip of perithecium 

 270-340/*; to insertion-cell 100 ti; greatest width 50t». Appendages, 

 average 45 /i long. 



