222 



Mycologia 



4. Spermoedia nigricans (Tul.) Seaver, N. Am. Fl. 3: 



55- 1910 



Claviceps nigricans Tul. Ann. Sci. Nat. III. 20: 51. 1853. 



Sclerotia formed in the inflorescence of the host, 3-5 in a 

 single spikelet, subcylindric or curved, often slightly flattened, 

 brownish to purplish-black externally, white within, longitudinally 

 striate ; stromata not seen in American specimens. 



On species of spike-rush (Eleocharis) . 



Type locality: Europe. 



Distribution: North Dakota and South Dakota; also in 

 Europe. 



Illustrations : Ann. Sci. Nat. III. 20 : pi. 4, f. 15-22. 

 Exsiccati: D. Griff. W. Am. Fungi 10. Other specimens 

 examined: North Dakota, Brenckle. 



5. Spermoedia Stevensii nom. nov. 

 ? Sclerotium Paspali Schw. Schr. Nat. Ges. Leipzig 1 : 268. 1822. 

 ? Spermoedia Paspali Fries, Syst. Myc. 2 : 268. 1822. 

 Claviceps Paspali Stevens & Hall, Bot. Gaz. 50 : 462. 1910. 



Sclerotia yellowish to gray, globose, roughened when mature, 

 about 3 mm. in diameter ; head dull yellow ; stipe short to medium 

 usually not more than 1 cm. long ; perithecia completely covering 

 the head, numerous, ovoid, 340X119 mic. ; asci cylindric, 174 

 mic. long; spores filiform, 101 X 0.5-1 mic. 



On species of Paspalum. 



Type locality: North Carolina. 



Distribution : Known only from the type locality. 



Illustrations : Bot. Gaz. 50 : 460, /. 1, and 461, /. 2 } 3, 5. 



6. Spermoedia Rolfsii (Stevens & Hall) 

 Claviceps Rolfsii Stevens & Hall, Bot. Gaz. 50: 462. 1910. 



Sclerotia yellowish to gray, globose, roughened when mature, 

 about 3 mm. in diameter; head dull yellow; stipe filiform, 1-1.5 

 cm. long; perithecia few in head and mostly upon extreme distal 

 portion, cylindric-ovate, 816X225 mic; asci cylindric, 375X3 

 mic. ; spores filiform, 260-275 X 0.5-1 mic. 



On species of Paspalum. 



Type locality: North Carolina. 



Distribution : Known only from the type locality. 



Illustrations: Bot. Gaz. 50: 461, /. 4. 



