269 



convex, suberumpent, pierced above, 75 n diam.. black. Asci oblong, 

 rather broader below, sessile, 24-27 x!2 //,. Sporidia biseriate. short- 

 fusoid, subobtuse. slightly curved, uniseptate, hyaline, about 12 x 3| /*, 

 -lightly constricted. 



On living leaves of Asimina trilolxi. Ohio (Kellerman). 



S. Opuntise, E. & E. Journ. Mycol. IV. p. 97. 



Perithecia gregarious, 100-112 diam.. in patches 2-10 mm. 

 across. Ostiola erumpent, globose, imperfectly quadrisulcate-cleft. 

 Asci oblong-cylindrical, 60 x 8-9 t u, sessile, without paraphyses. Spo- 

 ridia biseriate, clavate-fusoid, uniseptate, slightly bent at the septum, 

 nucleate, yellowish, 20-22 x 3| tt. Remarkable for its peculiar ostiola. 



On dead leaves of Opuntia, Louisiana (Langlois). 



S. rosigena, E. & E. Journ. Mycol. III. p. 45. 



Maculienlous. Spots amphigenous, reddish-brown. with a purplish 

 border, definite, 3-4 mm. diam. Perithecia epiphyllous. thickly scat- 

 tered over the spots, minute (60-75 /i). partly erumpent. subastomous, 

 black. Asci snbclavate-oblong, 25-30x8-10 t u. Sporidia bisrriare. 

 clavatc-obloiiLi-. hyaline, uniseptate, 10-12 x 2 u.. cnd< subacntr. Xor 

 to be confounded with ZW'/'// Row, Auersw. 



On living leaves of cultivated roses, Louisiana (Langlois). 



S. oleina, Cke. Journ. Bot. 1883, p. 107. 



Exsicc. Rav. F. Am. 754. 



Epiphyllous. Spots white, suborbicular. 2-3 mm. diam.. with a 

 reddish margin, sometimes confluent. Perithecia depressed, 75-80 /j. 

 diam., perforated above, often 2-3-confluent, subcircinnate, with a slight 

 mycelial fringe around the base. Asci clavate-cylindrical, 25-30 x 6 ,. 

 Sporidia subbiseriate. oblong-elliptical, 12 x 4 t a. Spermogonium Pluj 1 - 

 losticta oleina, Cke. 



On leaves of Olea Americana, Aiken, South Carolina. 



The measurements of perithecia and asci were taken from specc. 

 in Rav. F. Am. 



S. staphylina, E. & E. Journ. Mycol. Ill, p. 128. 



Maculicolous. Spots amphigenous. irregular, often narrow ai: I 

 elongated, mostly few on a leaf, 2-4 mm. or sometimes 1-1 \ cm. diam., 

 and occasionally occupying an entire half of the leaf, causing the 

 affected part to dry up and fall away. Perithecia minute, visible on 

 both sides, sublenticular and subastomous, membranaceous. black, 



