^2 SphasriacenL', Hyalndidyma', Vcnturia. 



ribus, atris vestitis; contextu perithecii ininute celluloso fuligineo; 

 ascis cylindraceo-clavatis breve stipitatis, apice rotundatis, 35-40 

 5'4-6, aparaphysatis, octosporis; sporidiis disticliis v. oblique mo- 

 nostichis, cylindraceo-fusoideis , 10-11 c:3, constricto-1-septatis , 

 hyalinis. 



Hab. in sarmentis corticatis emortuis Vitis viuiferae, Co- 

 negliano Ital. bor. et in foliis dejectis Eryngii agavifolii in 

 paludosis a la Boca del Riachuelo, Argent. Araer. bor. — Adest 

 subiculum pulverulento-pruinosum albido-roseura, inter perithecia 

 inspersum. 



B) In Bicotyledoneia herbaceis. 



21. Venturia Petasitidis (Fuck.) Sacc. Sphceria Pefasilidis Fuck. 2308 

 Symb. myc. p. 96. — Peritheciis superficialibus, gregariis, magni* 

 tudine eorum Vent. Kunzei, vertice parce setulosis, ovatis, ater- 

 rimis, in maculis purpureis; ascis ventricoso-elongatis, Ssporis, 

 48sl0; sporidiis ovato-clavatis, medio parum constrictis, didymis, 

 dilute flavescentibus, 10^:5. 



Ilab. in pagina superiore foliorum Petasitidis vulgaris, 

 Winkler Wald Germanise. 



22. Venturia Joiinstonii (B. et Br.) Sacc. Micli. II, p. 55, Bolhidea 2309 

 Johnsionii B. et Br. Cooke Handb. p. 800. — Peritheciis epipliyl- 



lis in acervulos maculiformes liinc inde dense aggregatis, globoso- 

 conicis circa verticem setulis cuspidatis, 26-40 :; 5, atris vestitis; 

 ascis cylindraceis, brevissime stipitatis, 50-60;; 15, apice tunica in- 

 tegra obtusiusculis, aparaphysatis, 8sporis ; sporidiis distichis cla- 

 vato-oblongis, 15-16^570-6, 1-septatis, lenissime constrictis, 4- 

 guttulatis, chlorino-hyalinis. 



Ilab. in foliis nondum emortuis E p ilobii mon tan i in Bri- 

 tannia, Gallia et Amer. bor. 



23. Venturia glomerata Cooke Grev. III. p. 69. Mich. I, p. 507. — 2310 

 Perithecii.s in maculis decoloratis hypophyllis, cespitulos minutos 

 formantibus, globoso-conicis 50 y.. diam., nigris, erumpentibus, raem« 

 branaceis, setulis rigidis acutis coronatis; ascis cylindraceo-rclavu- 

 latis 30 w 7, octosporis; sporidiis oblongo-clavulatis 7:^3, infra me- 

 dium 1-septatis, chlorinis. 



Hab. in foliis Geranii dissecti nondum prorsus eraortuis 

 in Britannia et in Gallia. — Habitus fere Stigmaiece Geranii. 



24. Venturia circinans (Fr.) Sacc. .Micli. I, p. 499. F. it. t. 639. Pe- 2311 

 rispoviuyn circinans Fr. S. M, III, p, 252. Stigmatea circinans 



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