265 



S. punctiformis, (Pers.) 



Sphceria punctiformis, Pers. Syn. p. 90. 



Sphceria sparsa, Wallr. Fl. Crypt. Germ. II, p. 772. 



Sph&ria insularis, Wallr. 1. c. p. 814. 



Sphceria per exigua, I,ev. Ann. Sci. Nat. Ser. Ill, torn. IX, p. 144. 



Sphceria acerina, Fckl. and Sphceria salicicola, Fckl. F. Rh. 845 and 836. 



Sphceria Artocreas, Rab. in Kl-Rab. Herb. Myc. Fd. I, p. 360. 



Sphcerella punctiformis, var. perexigua, Rab. Herb. Myc. Fd. II, p. 264. 



Sphcerella maculcefor?nis, Cke. Journ. Bot. Aug. 1866. 



Sphcerella acerina, Fckl. Symb. p. 99. 



Sphcerella corylaria, Fckl. 1. c. 



Sphcerella sparsa, paraneura, amphigena, cequalis, Awd. Myc. Eur. V, VI, Heft. 



figs. 27, 39, 48. 

 Sphcerella punctiformis, Sacc. Syll. 1819, Cke. Syn. 5307. 

 Exsicc. Fckl. F. Rh. 822, 836, 845, 847. Rab. Herb. Mycol. 264. id. F. F. 2441, 2945, 2548, 

 Kze. F. Sel. 243. Thum M. U. 264, 348. M. March, 156. 



Peritliecia innate-punetiform, smooth, subshining, black, promi- 

 nent, umbilicate by collapsion, perforated above, 60-120 jjl diam. 

 Asci clavate-cyiindrical, subsessile, attenuated below, 28-45x7-9 p. 

 Sporidia biseriate or obliquely uniseriate, obovate-oblong, uniseptate 

 and constricted, 6-9 x2-3| fi. hyaline, lower cell more acute. 



On the lower surface of leaves of Quercus. more rarely Castanea, 

 F'agus, ^Esculus, Carya, Cornus and some others, common. 



The synonymy is from Winter's Pilze. 



S. maculiformis, (Pers.) 



Sphceria maculiformis, Pers. Syn. p. 90. 

 Sphceria acerina, Wallr. Fl. Crypt. II, p. 770. 



Sphcerella oblivia, arcana and simulans, Cke. in Journ. Bot. Aug. 1866. 

 Sphcerella maculiformis, Awd. Myc. Fur. Pyr. V, p. 5. 

 Fxsicc. Kze. F. Sel. 244. Rab. F. F. 1219, &c, &c FH. N. A. F. 1349. 



Peritliecia hypophyllous, thickly gregarious, forming small, black, 

 angular spots \-\ mm. across, and limited by the nerves of the leaf, 

 innate-prominent, punctiform, globose, 70-80 ju broad, black and luster- 

 less, pierced above. Asci clavate-cyiindrical, sessile, 50-60 x 7-8 p. 

 Sporidia biseriate, obovate-oblong, uniseptate, more or less constricted 

 at the septum, hyaline, 9-14 x 3-4 fi (or sometimes only 2 [i wide). 



On leaves of Quercus, Castanea, Fraxinus, ^Jsculus and other 

 deciduous trees, common. 



Winter (in Die Pilze, p. 383) remarks that this species is usually 

 gathered in the autumn, while the perithecia are still immature, so 

 that the specimens in the various Exsiccati are, for the most part, un- 

 reliable. 



S. Grrossularise, (Fr.) 



Sphceria Grossularice, Fr. S. M. II, p. 521. 



Sphcerella Grossularice, Awd. Syn. Pyr. Fur. p. 11, tab. IV, fig. 44. 

 Fxsicc. M. March, 2525. 



Peritliecia hypophyllous, gregarious or nearly evenly scattered 

 34 



