Perisporiaceae, Erysipheas, Microsphaera. 13 



foliae. — Mycelium in pag. superiore magis conspicuum. uAsci 

 globulosi 50 s 40 )). 



13. Microsphaera extensa C. et Peck. 25 Rep. p. 95. — Mycelio tenui, ^^ 

 effuso, persistente; peritheciis globosis, nigris; appendiculis 8-12 

 perithecium ter vel quater superantibus, hyalinis ; ascis 4, sub- 

 globosis aut ovatis, 4-6-sporis. 



Hab. in Amer. bor. Greenbush, in foliis Quercus rubrae, 

 epiphylla. — A M. Vaccinii differt habitu formaque ascorum. 



14. Microsphaera Vaccinii (Schw?) C. et Peck. Journ. Bot. Jan. 1872. — 4(3 

 Peritheciis minutis, globosis ; ascis 6-8, ovoideis, 6-8-sporis ; appen- 

 dicibus 10-20, hyalinis, perithecii diametro plus duplo longioribus. 



Hab. in Amer. bor. West-Albany, in utraque pagina Vacci- 

 nii vacillantis, Oct. — An Erys. Frtccm^? Schw. huc spectet 

 nescio ; huc tamen ducit cl. Farlow in herb. — (( Asci (in exem- 

 plaribus Ellisianis) quandoque quaterni, 45-50 ^ 20-25 ; sporidia 

 sena 14-15=; 8-9. Appendices perithecium quintuplo superantes, 

 sursum pluries refracto-dichotomae, apicibus obtusiusculis ». 



15. Microsphaera Berberidis (DC.) Lev. in Ann. Sc. nat. 1851, tom. XV, 47 

 p. 159, t. 10, f. 28. E?'i/siphe Berbeyndis DC. — Bifrons; my- 

 celio arachnoideo, plerumque persistente ; peritheciis sparsis vel 

 gregariis, sphaeroideis, minutis ; ascis in singulo perithecio 6, ovoi- 

 deo-rostratis, 6-8-sporis; appendicibus parcis (5-10), ramulis elon- 

 gatis divaricatis apice obtusiusculis. 



Hab. in Italia, Gallia, Germania, Anglia, Belgio, Fennia, in 

 foliis Berberidis vulgaris, autumno. 



16. Microsphaera Friesii Lev. Ann. Scienc. nat. 1851, XV, p. 156, t. 8, 48 

 f. 20. — Mycelio arachnoideo fugaci vel persistente ; peritheciis 

 minutis globosis sparsis aut confertis ; ascis 4, ovato-rostratis, 6- 

 sporis ; appendiculis parcis (8-10) perithecium ffiquantibus. 



Hab. in foliis Betul?e alb?e {E. Betulce bC.) in Gallia, Rha- 

 mni catharticse, Saxonia, Syringae in Amer. bor., Be- 

 tulse verrucosa^ in Italia et Austria. 



17. Microsphaera Euphorbiae B. et C, Berk. N. Am. Fungi n. 997. — 49 

 Mycelio effuso; appendicibns Jongissimis furcatis, apicibus furcato- 

 lobatis. 



Hab. in Carolina inf. in foliis Euphorbiae. — Appendices pe- 

 rithecium pluries excedentes, simpliciter bisve furcatcP, apicibus 

 lobulatis, (( irregulariter nodulosae; asci 4 obovati, 54-60=^28-30; 

 sporidia 6, hyalina 12-14 =; 8-9». 



18. Microsphaera penicillata iWallr.) Lev. in Ann. Sc. nat. 1851, t. XV, 5o 



