OIG SPH^RIACEI. 



gated, uniseptate, constricted at tlie septum, attenuated towards 

 each extromity, with two sporules in each cell. — Cooke Seem. 

 Journ.{\mQ>)t. 50,/. 16. Gonn.^ Eabh.Y. jy. 10,1.2, f.2Q. 



On dead leaves of sycamore. Sliere, Surrey. 



Sporidia ('002 in.) '05 m.m. long. 



2755. Sphaerella acerifera. Cooke. " Maple Sphgerella." 



Hypophyllous. Perithecia scattered, innate, globose, minute, 

 black ; asci broadly cylindrical ; sporidia large (three times as 

 long as broad), almond-shaped, hyaline, containing two sporules 

 or nuclei. — Cooke Seem. Journ. (1866) ^ 50,/. 18. 



On dead leaves of Acer campestre. Shere, Surrey. 



Sporidia ('0075 in.) '02 m.m. long. 



This is r -ferred doubtfully by Auerswald (Gonn. ^ Rahh. v. p. 4) to Sphcerella 

 sparsa. Wallr. 



2756. Sphaerella carpinea. Fr. " Hornbeam Sphserella." 



Hypophyllous. Perithecia gregarious, innate, at first covered, 

 black, commonly scattered over the entire leaf; asci subclavate ; 

 sporidia biseriate, broadly and shortly cymbiform,the least curved 

 side being a little hollowed out towards either apex. — Cooke 

 Seem. Journ. t. 50,/. 19. Go7in ^ Rahh. pt. Y.t. 2,/. 16. Rabh. 

 exs. no. 365. West. exs. 275. Sphceria carpinea, Fr. Sys. Myc. ii. 

 p. 523. Desm. PI. Crypt, no. 981. i?. 8^^ Br. Ann. N.H. no. 655, t. 

 12, f. 41. Cooke exs. no. 165. Cooke L.F. no. 86. Ascospora 

 carpinea, Fr. Sum7n. 4:26. Rabh. exs. 366. Fckl. exs.no.4:QQ. 



On dead leaves of hornbeam. 

 Sporidia ("0005 in.) '015 m.m. long. 



2757. Sphaerella pinastri. Duly. " Fir-leaf Spbasrella." 



Perithecia minute, scattered, globose, depressed, immersed, 

 piercing the ej^idermis with their short ostiola ; asci clavate ; 

 sporidia crowded, colourless, elliptical, often acuminate. — Cooke 

 Seem. Journ. t. 50, /. 27. Sphceria pinastri, Duhy, Bot. Gall. ii. 

 ^.704. Grev.t.lh. Eng.Fl.x.p. 270. Curr. Linn. Tmns. xxii. 

 ;?. 324, ^.58,/ 82. 

 On fallen fir leaves. 

 Sporidia (•0003.'0004 in.) 'OO/S-'Ol m.m. long. 



2758. Sphaerella inaequalis. Coolie, " Unequal Sphasrella." 



Hypophyllous. Perithecia scattered, innate, globose, black, 

 surmounted by three or four stiff hairs or setee which pierce 



