294 



mm. long and 165 p wide, subglobose, perforated above, 70 p diam. 

 Asci elongated-obiong, very short-stipitate, 8-spored, 50 x 7-8 //. 

 Sporidia biseriate, wedge-shaped-oblong, rounded at the ends, straight, 

 uniseptate, not constricted at the septum, smoky-hyaline, 14 x 5 p. 



On leaves of Typha latifolia. West Chester, Pa. 



The West Chester specc. have asci 25-38 x 10-12 p, sporidia 11- 

 12 x 3-3| //, and seem to be the forma minor of Fckl. Symb. p. 107, 

 with asci 36 p long and sporidia 10x4 p. The specc. issued under 

 this name in Mycotheca Marchica 2136, and Roum. F. Gall. 5354, 

 afford two species of Pleospora, and .one of Leptosphceria, but no 

 Sphcerella. 



S. Pontederiae, Pk. 40th Rep. p. 69. 



Sphcerella paludosa, E. & E. in Ell. & Evrht. N. A. F. 2d Ser. 2357. 



Spots rather large (lj 2 cm.), oblong or elliptical, sometimes con- 

 fluent, brown above, blackish-brown or grayish-brown below. Peri- 

 thecia minute, (75 //), hypophyllous, black. Asci oblong or subfusi- 

 form, 50-62 x 12 J p. Sporidia crowded or biseriate, oblong-clavate, 

 uniseptate, sometimes quadrinucleate, 15-20x5-6 p. 



On languishing leaves of Pontederia cordata, Whitehall, N. Y., 

 and Newfield, N. J., and on leaves of Nuphar advena, London, 

 Canada. 



S. incisa, E. & M. Journ. Mycol. I, p. 99. 



Perithecia membranaceous, gregarious, globose or depressed- 

 globose, \ mm. diam., covered by the blackened epidermis. Asci 

 lanceolate, 100-120 x 8-10 p, without paraphyses. Sporidia fusiform, 

 attenuated to a bristle-like point at each end, endochrome distinctly 

 divided in the middle, pale yellowish ; length, including the bristle- 

 pointed ends, 40-50 p, width, 3-4 p. The walls of the perithecia are 

 closely adnate to the matrix, and with difficulty separable from it. 



On dead petioles of Sabal serrulata, Florida (Martin). 



S. Orontii, E. & E. Journ. Mycol. I, p. 151. 



Perithecia epiphyllous, scattered, minute (100 p), purplish-black, 

 membranaceous, coarsely cellular, perforated above, partly erumpent. 

 Asci oblong, a little narrower above and abruptly contracted below 

 into a very short, stipe-like base, 35-40 x 10-12 p, without paraphyses. 

 Sporidia biseriate, oblong, hyaline, nucleate and faintly uniseptate, 

 about 14 x 4-5 p, a little narrower at one end. Physalosp>ora Orontii 

 has larger perithecia and rather larger, regularly elliptical, continuous 

 sporidia. 



