561 Hyiihomycetere, Mucedinefe, Phragmosporse, Cercosporella. 



CEROOSPORELLA Sacc. Syll. IV, p. 218. 



1. Cercosporella chionea (E. et Kell.) Sacc, Cercospora chionea E. '7306 

 et Kell, Biill. Torr. Bot. Cl. Xi, p. 122. — Anipliigeiia sed Scepkis 

 epiphylia; rnaculis iati.s 0,5-1 cm. velconfluendo 8-4 cm. diam., 

 ohscure riifo-bninneis, zona brunneo-flavicante, non elevata cinctis; 

 hypliis (lense ciespituiosis, suljhyaiini"^, 18-30=; 4-5, subinde vero 

 35-40 {X. longis et leniter undulatis vel sursum curvis; conidiis 

 vermicnlaribus vel clavato-cylindraceis, 54-90 c; 4-5, 3-8-septatis. 

 Hah. \\\ foliis Cercidis canadensis, Kansas Amer. bor. — 

 Sistit pruinam albam in maculis atris. 



2. Cercosporella pirina Eli. et Ev. Proc. Acad, Phii. 1891, p. 91. — 7307 

 Hypophylla, elTusa, niaculi.s nullis detinitis,' initio in?equaliter cce- 

 spitulosa, dein folium hvQ totum occupans et decolorans, supra 

 vero rubro-infuscans; hyphis fertilibus ett^isis, brevibus, 12-25^:5, 

 hyalinis; conidiis oblongo fusoideis vel vermicularibus , hyalinis, 

 3-6-septatis, utrinquo obtusis. 



naJ). in foliis Piri coronarice, .Raciue Wis. Amer, borealis 

 (Davis). 



3. Cercosporelia Evonymi Eril^ss. in Bot. Centralbl. 1H91, III. p. 299. 7.308 

 — Maculis epiphyllis. subcircularibus v, angulosis, 4-10 m\\\. diam., 

 expallentibus, purpureo-marginatis ; caispitulis pulvereis, fascicnla- 



tis, albis; hyphis assnrgentibus, septatis, hyalinis ; conidiis vermi- 

 cularibus curvulis, usque semicirculari-arcuatis, utrinque obtusuli,s, 

 2-3-.?eptatis, 40-44 ^ 3, hyalinis. 



Hah. in foliis Evonymi europa^iin Scandinavia. 



4. Cercosporella stomatophlla Speg. F. Guar. II, n. 184. — Acervu- 7309 

 lis hypophyllis e stomatibus epidermidis [)enicillatira protrudenti- 

 bu.«, minutissimis, 50-60 a. diam. candidis; hyphis e tuberculo airo, 

 subgloboso, 40-50 |ji. diam., slomate innato exsurgpntibus , bre- 

 viuscuris, 20-25 - 4, rugulosis, noduloso-denticulatis, continuis hya- 

 linis ; conidiis cylindraceis, e denticulis hypharum oriundis, utrin- 

 que rotundatis, 20-30:^2-2,5, medio 1-septatis, non coustrictis, 

 hyalinis. 



Hah. ad folia viva Sapindacese cujusdara in dumetis pr. Gua- 

 rapi Brasilise. 



5. Cercosporella rosea Wint. Exot. Pilze IV, p. 9. — Caespltulis de- 7310 

 licatissimis, hypophyllis, minntis, anguiato-rotundatis, tomentosulis, 

 roseis, 0,5-1 mm. iat. ; hyphis repentibus, dense intertextis, hya- 

 linis, parce septatis, ramulos erectos, subsimplices, apicem versus 



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