THAXTER. — NEW LABOULBENIACE/E. 199 



except that the two or three lowest cells of the series bear a short oue- 

 celled branch termiuated by usually three slightly curved brown anthe- 

 ridia. Spores 52 X 4 /x. Perithecia 110 X 22-150 X 33 yu,, exclusive 

 of neck which is 20-30 fx. Total length to tip of perithecium 175-300 /a; 

 to insertion-cell about 90-110 /x ; greatest width 40-55 ^. Appendages 

 90-130 IX. 



On Trichognathus sp., Paris Museum, No. 72, Venezuela. On " T. 

 margivdtns" Brit. Mus. No. 526, Brazil; on T. marginipetinis hatr., 

 Brit. Mus. No. 525, Tamaz, S. America; on Galerlta occidentalis Oliv., 

 Brit. Mus. No. 515, Bolivia; on Galerita sp., Hope Coll., No. 258, 

 Bahia, Brazil. On all parts of host. 



Laboulbenia rliinophora nov. sp. 



Perithecium large and stout, dirty smoky brown, the lower half much 

 deeper and united to the receptacle, the base nearly opaque, one of the 

 subtermiual wall-cells forming a terminal blunt finger-like brown out- 

 growth, close beside the rather small internally blackened tip, which it 

 exceeds in length. Receptacle stout, the basal cell small hyaline ; a 

 blackish brown suifusion becoming opaque involves the upper part of 

 cell II, cells III, YI, and VII, as well as the basal cells of the perithe- 

 cium; cells IV and V very large and nearly parallel, translucent ; the 

 suffused parts, when not opaque, marked by darker transverse dots and 

 strise. Insertion-cell very large, triangular, quite unmodified. Append- 

 ages consisting of two basal cells concolorous with insertion-cell, the 

 outer usually somewhat larger, both protruding upward and slightly over- 

 lapping, producing directly numerous branches (four to eight from each 

 cell) which arise in more than one row from their outer surfaces; all the 

 branches once to twice branched, the lower segments deeply constricted 

 at the purplish septa, the distal cells without constrictions at the hyaline 

 septa. Spores 75 x 5 /x. Perithecia to tip of protuberance 275-300 X 

 85 ju; to insertion-cell 300-340 jx. Appendages about 200 ^/. 



On Brach'mus sp., Hope Coll. No. 252, Madagascar. On legs. 



Laboulbenia rostellata nov. sp. 



Perithecium about one half free, becoming more or less deeply suffused 

 with blackish brown, relatively small, narrow and curved toward the 

 appendages, the tip monstrously developed, bulging terminally and 

 externally to form a rounded prominence from the inner side of which 

 a blunt blackened outgrowth is developed, the hyaline contrasting tip of 



