476 Sph£eriaceae, Hyalodidyma?, Spha^rella. 



Myrnuecium. Perithecia botryoideo-aggregata, glabra, intus alba, stromate 

 depresso-pulvinato iutus albido inserta. Sporidia hyalina. 



C) Compositae, stromaticse. 



Endothia. Stroma diatrypeum, crocatum. Peritliecia immersa, nigricantia. Spo- 



ridia exigua. 

 Metanconis. Stroma valsieum nigricans v. flavidum. Perithecia circinantia. 



Sporidia mediocria, mutica v. appendiculata. Status coni- 



dicus Metaneoninm sistens. 

 Hercospora. Stroma valseum nigricans. Perithecia circinantia. Sporidia mu- 



tica. Pycnidium Rabenhorsliam sistens. 

 Diaporlhe. Stro.iia valseum v. diatrypeum v. eutypeum. Sporidia mutica v. 



appendiculata. Spermogonium Phomcs species (spermatiis 



loDge stipitatis) sistens. 



SPH>ERELLA Cos. et De Not. Schema Sfer. p. 62 p. p., Sacc. Gen. 

 Pjr. p. 9 (Etym. a Sphccria). — Perithecia tenui-membraQacea, 

 globoso-lenticularia, epidermide velata v. erumpentia, ostiolo im- 

 presso V. breve papillato pertusa. Asci aparaphysati, octospori. 

 Sporidia elliptica v. oblonga, bilocularia, hyalina v. subhyalina. — 

 Spermogonia et conidia in pluribus nota. — Fungilli nuraerosissi- 

 mi, exigui, punctiformes, saepissime foliicolae raro clado-carpogeni. 

 Conferantur genera, pluribus notis Sphcerellce affinia: Stigmaiea. 

 Apiospora, Didymella et Epicymaiia. 



I. In Dicotyledoneis parasiticce. 



a) Arboricolce. 



7 Foliicotce. 



1. Sphaerella punctiformis (Pers.) Rabh. Herb. myc. II, 264, Sphcvria jgj^ 

 punctiformis Pers. Syn. p. 90, Fr. S. M. II, p. 525, nec Desm., 

 nec Fuck., Sphcerella sparsa Auersw. Myc. Eur. Pyr. p. 4 p. p. 

 fig. 4, 27, 39, Sphceria perexigua Lev. Fragra. myc. p. 144. — 

 Sparsa; peritheciis innatis punctiformibus, laevibus, subnitidis, ni- 

 gris, prominulis, collabascendo umbilicatis, poro simplici pertusis, 

 60-120 a. diam., ascis tereti-clavatis, subsessilibus basi attenuatis, 

 28-45:^7-9; sporidiis distichis v. incumbenti-monostichis, obovato- 

 oblongis, uniseptatis, constrictis, 6-9 ^ 2-3,5, hyalinis, loculo infe- 

 riore acutiore. 



Hab. in pag. infer. foliorum Quercuum, rarius Fagi, Ca- 

 staneae, ^sculi, Caryae, Lyoniae, Corni in tota fere Eu- 

 ropa et Amer. boreali. 



