Sphaeriaceag, Hyalodidyraae, Sphaerella. 4*77 



2. Sphaerella maculiformis (Pers.) Auersw, Myc. Eur. Pyr. p. 5, f. 1 im 

 et 109, Sph. maculiformh Pers. Syn. p. 90, Fr. S. M. II, p. 524. 



— Hypophylla ; peritheciis innato-prominulis punctiformibus, glo- 

 bosis, nigris, in maculas insequales congloraeratis , 70-80 y.. lat. 

 poro pertusis ; ascis tereti-clavatis, sessihbus, 50-60 ^ 7-8, octo- 

 sporis ; sporidiis biseriatis, obovato-oblongis, uniseptatis, constri- 

 ctis, 14 i; 3-4 (rarius 2). — Sperraogonia sistunt Septoriam quer- 

 cinam Desm. et probabiliter quoque Sph. castanicolam Desm. 



HaJ. in pag. inf. foliorum dejectorum Quercus, Castaneae, 

 rarius ^sculi, Carpini, Tiliae, Platani, Fraxini, Vac- 

 cinii etc. in tota fere Europa et America boreali. — Macul.Te 

 y^-l mill. diam., venulis limitatae, hinc angulosae. 



3. Sphaerella nigrita Cooke Some Extra-eur. Fungi in Grevill. VII, i82i 

 p. 13. — Hypophylla; peritheciis semiimmersis, in maculas orbi- 

 culares nigrescentes congestis ; ascis clavatis ; sporidiis elongato- 

 ellipticis, uniseptatis, hyalinis, 15 ^ 4. 



Hab. in foliis quercinis, New York Amer. bor. (Gerard.). 



4. Sphaerella oblivla Cooke Handb, n. 2746, Sph. macuUformis var. 1,322 

 Auersw. Myc. Eur. Pyr. fig. 7. — Peritheciis semiinnatis, nigris, 

 hinc inde 10-20 in maculas minutas, crebras, atras, dense aggre- 

 gatis; ascis cylindricis; sporidiis biseriatis, curvulis, uniseptatis lo- 

 culo inferiore tenuiore, chlorinis 12-15 a. longis. — Sec. Cooke 



1. c. Septoria castanicola Desm. est spermogonium. 



Hab. in pag. infer. foliorum emortuorum Castaneae vescae 

 in Britannia, socia genuina Sph. maculiformi, nec non in foliis 

 Rhododendri maximi, Buffalo Araer. bor. (Peck, 28 Rep.). 



5. Sphaerella familiaris Auersw. Myc. Eur. pag. 6. fig. 10. — Peri- 1323 

 theciis hypophyllis, nigris, opacis, epidermidi innatis, gregariis, 



sed non maculas formantibus, depresso-globosis, imo lentiformibus, 

 poro simplici pertusis, 140 u.. latis; ascis creberrimis, tenerrimis, 

 clavatis, in stipitem filiformem attenuatis, 8-sporis, 60 i; 10-12, 

 p. sporif. 30-36 a. longa; sporidiis biserialiter stipatis, obovato- 

 oblongis, uniseptatis, pallide luteolis, 7-9 ^: 4-5. 



Hab. in pag. infer. foliorum Quercus saepius cinerascentium 

 in Gerraania. 



6. Sphaerella spleniata C. et Peck. 25 Rep. 105. — Peritheciis mi- jgg^ 

 nutis, dense aggregatis, maculasque latas subcirculares aut augu- 

 latas efficientibus, nigris, globosis, foliorum tomento nidulantibus; 

 ascis linearibus; sporidiis oblongis, uniseptatis, 12-15 y-. long., 

 hyalinis. 



