313 



Perithecia densely gregarious, in tolerably large (1-10 mm.), 

 indefinitely limited, dendroid or variously shaped groups or patches, 

 at first buried, finally erunipent, spherical, perforated above, black, 

 90-100 p. diam. Asci clavate. sessile, 8-spored, 60 x 6 //. Sporidia 

 2-3 -seriate, elongated-fnsoid. somewhat pointed at the ends, slightly 

 curved, 3-septate. hyaline, 30-35 x 2-3 p.. 



On fallen oak leaves. Carolina, Ohio. Pennsylvania. Xew York, 

 Xe\v Jersev and New England. 



* <_ 



STIGJIATEA, Fr. 



Summa Veg. Scand. p. 421, (Sacc. Syll. I, p. 541). 



Perithecia imiate-subproniinent, glabrous, thin-walled. Ostiolum 

 minute, nucleus rather compact, white. Asci oblong, snbsessile, 8- 

 -pored. paraphysate or pseudoparaphysate. Sporidia ovoid-ellipsoid, 

 unequally uniseptate. yellowish-hyaline. Foliicolous. minute. 



St. Robertiani, Fr. Summa Veg. Sc, p. 421. (Plate 27) 



Dothidea Robertiani, Fr. S. M. II, p. 564. 



Cryptospluzria uitida, Grev. Fl. Ed. p. 363. 



Hormotheca Geranii, Bon. Abh. p. 149. 



I'.xsicc. Fckl. F. Rh. 4iq. Kab. F. E. 963, 2129. Rehm Asc. 246. Thum. F. Austr. 151. 

 id. M. U. 160. Cke. F. Brit. Ser. I, 133 EH. & Evrht. N. A. F. 2d Ser. 2362. 

 Krieg. F. Sax. 230. Erikss. F. Scand. 90. M. March. 253. F. Gall. 2085. 



Perithecia scattered, gregarious or collected in loose group-, 

 -upcriirial. sessile, hemispherical, smooth and shining, about 140 p. 

 broad and 50-60 n high. Asci oblong, sessile, 8-spored, 33-45x11- 

 14. . mostly liroader below, with scanty paraphyscs. Sporidia sub- 

 l)iseriat(?. ovate-elliptical, unequally two-celled, upper cell broader, 

 .irreenish, 12-14 x4J-5 p.. 



On living leaves of Geranium Robert 'tan urn, Massachusetts (Stur 

 iris), Canada (Dearness). 



St. Arundmarise, Cke. Grev. VII. p. 50. 



Epiphyllous. gregarious. Perithecia subglobose or depressed, 

 black, astomous, superficial. Asci clavate. Sporidia fusoid, 4-nucleate, 

 at length triseptate, hyaline, 2630 x 8-10 p.. 



On Arundinaria, Georgia (Ravenel). 



St. Geraiiii, Fr. Summa Veg. Scand. p. 42 1. 



Dothidea Geranii, Fr. S. M. II, p. 558. 



Epiphyllous. Perithecia gregarious on a purplish spot, ovate, 

 minute, black, glabrous. Asci elongated, 8-spored, 40 x 8 p.. Sporidio 

 biseriate, subclavate. didymous, hyaline. 8x4 /;.. 

 40 



