44 PROCEEDINGS OF THE AMERICAN ACADEMY. 



angular-truncate or very slightly oblique apex. Distal and basal portions 

 of the receptacle very thick-walled, punctate, abruptly distinguished ; 

 the basal part hyaline or faintly reddish brown, parallel with the peri- 

 thecium ; the subbasal cell larger and longer, more or less prominently 

 and gradually constricted toward the middle ; the straight anterior 

 margin of the distal portion abruptly divergent and formed by cell 

 VI and the secondary stalk-cell, both of which become deeply suffused 

 with black brown, except the base of cell VI which is concolorous with 

 the subbasal cell, from which it arises laterally and subterminally : cell 

 III and IV subequal and separated by a slight constriction, faintly 

 brownish or subhyaline, their margins slightly convergent toward the 

 thick, jet black, consti'icted, slightly oblique insertion-cell ; the inner 

 margin of which is free from the base of the perithecium. Basal cell 

 of the outer appendage squarish or slightly longer than broad, bearing 

 above its outer upper angle a single opaque contrasting short branch 

 (broken in the types but evidently bearing several branchlets) ; the 

 basal cell of the inner appendage somewhat smaller, bearing a branch 

 on either side ; each branch thrice closely branched, their short basal 

 cells, which are subhyaline or faintly reddish brown, each succes- 

 sively bearing two or three divergent branchlets ; the series ending 

 in branchlets of the fourth or fifth order, which are deep brown, slender, 

 stiff (the extremities broken in the types), divergent, thirty or more in 

 all. Spores 185x6.5/^. Perithecia 290-310 X 80-87 /.c. Recep- 

 tacle 365-540 X 150 ^u. Appendages (broken) 2207 /a or more. Total 

 length to tip of perithecium 600-650 /x. 



On inferior thorax of Thyreopterus hrevicollis Kl., Madagascar ; 

 Berlin Museum, No. 934. 



Laboulbenia Japonica nov. sp. 



Short and stout, unevenly suffused with smoky or faintly olive brown. 

 Perithecium relatively very lai'ge and long, more or less distinctly 

 curved toward the appendages ; the base subhyaline, the body evenly 

 dark, slightly olivaceous brown, scarcely inflated, tapering very slightly 

 to the stout, evenly rounded, opaque, hardly differentiated tip ; the longi- 

 tudinal series of wall-cells slightly spiral, describing about one quarter 

 of a turn or somewhat more. Receptacle relatively small, short and 

 stout, the basal and subbasal cells hyaline, coutrasting, the latter some- 

 what larger, separated by an obli(iue partition from cell III, which is 

 small, subtriangular and deeply suffused ; cell IV larger, suffused, as is 

 cell V, which is relatively large and long-oval ; cell VI deeply suffused, 



