86 



Mycologia 



immature asci are very much smaller. The spores are long and 

 very slender and no septa could be distinguished. It is difficult 

 to determine the number of spores when enclosed in the ascus 

 but occasionally an ascus may be found broken with the thread- 

 like spores protruding and in this case they may be easily counted. 

 This species is probably rare. 



34. Typhodium Link, Abhandl. Akad. Wissensch. Berl. 1824: 



175. 1826 



Epichloe (Fries) Tul. Fung. Carp. 3: 24. 1865. 



Stroma effused, subfleshy, at first pale becoming bright orange, 

 forming rings or sheaths about the stems of grasses; perithecia 

 immersed or with the ostiola protruding; asci cylindrical, 8- 

 spored; spores filiform, many-septate. 



I'ype species : Sphaeria typhina Pers. 



I. Typhodium typhinum (Pers.) 

 Sphaeria typhina Pers. Ic. et Descr. i : 21. 1798. 

 Sphaeria spiculifera Sow. Engl. Fungi, pi. 2/4. 1803. 

 Dothidea typhina Fries, Syst. Myc. 2 : 553. 1822. 

 Stromatosphaeria typhina Greville, Scot. Fl. 4: pi. 204. 1826. 

 Cordyceps typhina Fries, Summa Veg. Scand. 381. 1849. 

 Epichloe typhina Tul. Ann. Sci. Nat. IV. 13 : 18. i860. 



Stroma effused, subfleshy, at first pale, becoming bright orange, 

 forming sheaths 2-5 cm. in length, about the stems of various 

 grasses ; conidia elliptical, hyahne, 4-5 X 3 mic. ; perithecia 

 thickly scattered, partially to entirely immersed, soft, mem- 

 branaceous, similar in color to the stroma, with a rather promi- 

 nent ostiolum ; asci cylindrical, very long, 8-spored ; spores nearly 

 as long as the ascus, in a close fascicle, about 2 mic. in diameter, 

 many-septate {pi. 20, f. ly-iS). 



On Hving grasses: Agropyron divergens, Agropyron occiden- 

 tale, Calamagrostis canadensis , Dactylis glomerata, Elymiis vir- 

 ginicus, Hystrix hystrix, Koeleria cristata, Panicularia nervata 

 and Stipa sp. 



Type locality : Europe. 



Distribution : N. York to Washington and Mexico. 

 Illustrations: Greville, Scot. Crypt. Fl. pi. 204; Pers. Ic. et 

 Descr. i : pi. J, f. i; Sow. Engl. Fungi pi. 2^4. 



