269 



convex, subenmipent, pierced above, 75 fi diam., black. Asci oblong, 

 rather broader below, sessile, 24-27 xl2 ^. Sporidia Iiiseriate, short- 

 fusoid, subobtuse, slightly cnrved.uniseptate, hyaline, about 12 x 3J /i, 

 slightly constricted. 



On living leaves of Asimina triloba, Ohio (Kellerman). 



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



Perithecla gregarious, 100-112 fi diain., in patches 2-10 mm. 

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

 Asci oblong-cylindrical, 60 x 8-9 /i, sessile, ^vithout paraphyses. Spo- 

 ridia biseriate, clavate-fnsoid, uniseptate, Slightly bent at the septum, 

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



On dead leaves of Opuntia, Louisiana (Langlois). 



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



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

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

 tered over the spots, minute (60-75 fi), partly erumpent, subastomoiis, 

 black. Asci subclavate-oblong, 25-30 x 8-10 /i. Sporidia biseriate, 

 clavate-oblong, hyaline, uniseptate, 10-12 x 2 //, ends subacute. Not 

 to be confounded with Lmstadia Sosce, 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 p 

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

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

 Sporidia subbisei'iate, oblong-elliptical, 12 x4 /^. Spermogonium Phyl- 

 losticta oleina, Cke. 



On leaves of Olea Americana^ Aiken, South Carolina. 



The measurements of perithecia and asci were taken from sjiccc. 

 in Rav. F. Am. 



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



Maculicolous. Spots amphigenous, irregular, often narrow and 

 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, 



