278 



S. annnlata, Cke. Grev. TI, p. 146. 



Exsicc. Rav. F. Am. 378. 



Scattered, immersed. Perithecia depressed, subannulate. Asci 

 clavate. Sporidia elliptical, at length iiniseptate, 8 x 3 /z. 



On leaves of Magnolia, Aiken, South Carolina (Ravenel). 



S. glaiica, Cke. Hedw. 1878, p. 39. 



Exsicc. Rav. F. Am. 94. 



Epiphyllous. Spots pale with a rose-colored tint, suborbicular, 

 margin darker, 2-A mm. diam. Perithecia semiimmersed, brown. Asci 

 clavate. Sporidia short-lanceolate, uriiseptate, hyaline, 12-14x4 [i. 



On leaves of Magnolia glauca, South Carolina (Eavenel). 



S. Phellos, (Schw.) 



SpJuEria Phellos, Schw. Syn. N. Am. 1805. 

 Spharella Phellos, Cke. Joum. Bot. 1883, p. 106. 



Perithecia hypophyllous, collected a few together, in small, scat- 

 tered clusters, on a grayish-brown spot, penetrating to the opposite 

 side of the leaf, globose, subprominent, minute, black, perforated. Asci 

 clavate. Sporidia narrow-elliptical, uniseptate, hyaline, 8-10 x2| /i. 



On leaves of Quercus Phellos, Carolina (Schweinitz). 



S. convexula, (Schw.) 



Sphceria convexula, Schw. Syn. N. Am. 1788. 

 Exsicc. Thum. M. U. 1 149.— Rav. F. Am. 755.— Ell. & Evrht. N. A. F. 2d Ser. 1674. 



Perithecia scattered over the whole lower surface of the leaf, 

 innate, rugulose, but somewhat sliining, black, subastomous, strongly 

 convex, not collapsing. 



On leaves of Carya, Carolina, Pennsylvania, New York and Ohio. 



The specimens in all the Exsiccati above referred to, are unsatis- 

 factory, immature or sterile. Those in X. A. F. 1674, have asci 25-30 

 X 6 n, and sporidia, as near as can be made out, 6 x 2i-3 //, but thev 

 are too immature to show an accurate outline. The perithecia in these 

 specc. are mostly in small patches as in 5. maculiformis, and in this 

 respect do not agree with the description given by Schweinitz. 



S. petiolicola, (Desin.) 



sphceria petiolicola, Desm. Ann. Sci. Nat. Ill, Ser. tom. XI, p. 354. 

 Spkcerella petiolicola, Awd. Myc. Eur. V, VI, Heft, p. 8, fig. 38. 

 Exsicc. Ell. N. A. F. 795.— Desm. PI. Cr. Ed. ., 2077. 



Perithecia scattered or subgregarious, at first covered bv the epi- 

 dermis, which is either pierced or raised in a pustuliform manner, 

 .-spherical, black, perforated above, about 110 /.( diam. Asci cylin- 



