Laboulbeniacese, Cbitoiiomyces. 727 



1. Peyritschfelfa curvata Tliaxt. In Piatyno cincticolli in Amer. 

 -bor. — Peritliecia 90-100 ^ 22-29 ; sporidia 26 v 3,B-4. 



2. Peyrltschie!!a minima Thaxt. In Platyno cincticolli in Amer. 

 bor. — Peritliecia 100 ^ 33 ; sporidia 37-40 « 4. 



3. Peyritschieiia geminata Thaxt, In Pterosticho luctuoso, P. 

 patrueli, P. erytropodi in Amer. bor. — Perithecia 75-80 

 «18-22; sporidia 37^3,7. 



4. Peyritschlella nigrescens Thaxt. In Philontho debiii in Am. 

 bor. — Perithecia Qb >^19. 



DICHOMYCES Thaxt. Mon. p. 282. — Syii. XI, p. 447. — Beceptacu- 

 lum symmetricum. e seriebus nonnuiiis transversis celiularum su- 

 perpositarum formatum ; ceiiula basiiari unica ; antheridia bina. ad 

 seriem subterminaiem. Perithecia iibera. 



1. Dichomyces furcifer Thaxt. In Phiioutho debiii in Amer^ 

 bor. — Perithecia 63 v 16-18. 



2. Dichomyces ineequaiis Thaxt. In Phiiontho debiii in Amer. 

 bor. — Perithecia 100 « 25 ; sporidia 26 « 3,5. 



3. Dichomy€6S infectus Thaxt. In Xanthoiino obsidiano in Am. 

 bor. — Perithecia 06 v 2. 



4. Dichomyces princeps Thaxt. In Phiiontho sordido in Amer. 

 bor. — Perithecia 110-165 v 22-30; sporidia 38 >* 4. 



HYDR/EOMYCES Thaxt. Mon. p. 293 (1896) (Etym. hydreia aquatio et 

 myces). — Receptacuium asymmetricum ; ceiluiae basilares tern^ 

 superpositse. Perithecium receptacuio p. m. p. connatum. Species 

 aquatica. 



1. Hydraeomyces Halipli Thaxt. In Haiiplo ruficolli et Cnemi- 3761 

 doto mutico in Amer. bor. — Perithecia 100 >«! 35-40; sporidia 

 30 V 3. 



CHITONOMYCES Peyr. em. Thaxt. Mon. p. 285. — Syll. YIII, p. 914, 

 915, XI, p. 447. — Receptacuium asymmetricum ; ceiiuise basi- 

 iares binse superpositse. Perithecium reeeptaculo p. m. p. connatum. 

 Species aquaticae. 



1. Chitonomyces paradoxus (Peyr.) Thaxt. In Laccophiii spec. 

 piui-. in Europa et Amer. bor. — Perithecia cum bas. 225 \x. i.; 

 sporidia 65 5^ 7, curvata. 



2. Chltonomyces appendiculatus Thaxt. In Laccopliilo maculoso 

 in Amer. bor. — Perithecia 55-75=^15-22; sporidia 32 <# 3. 



3. Chltonomyces distortUS Thaxt. In Laccophilo maculoso in 



