Part 1, 1906] TIIvIvBTIACEJAB 49 



regular reticulations (3-6 ^ wide, projecting as winged margin 1-3 ^), 24-30 ^, or occa- 

 sionally even 34 /i, in length. 



On Poaceae : 



Anthoxanthuwi odoratum^ Connecticut. 

 Type locality : Norway, on Anthoxanthum odoratum. 

 Distribution: Connecticut; also in Europe. 

 Illustration : Bull. Conn. Geol. Nat. Hist. Surv. 5: /. 12, 39. 

 ExSicCATi : Seym. & Earle, Bcou. Fungi C 124, 



5. Tilletia Muhlenbergiae Clinton, sp. nov. 



Sori in ovaries, apparently 'occupying all in the inflorescence, ellipsoidal, about 3 mm. 

 in length, somewhat hidden by the glumes, with a greenish membrane of plant tissue at 

 apex of which are the evident remains of the styles, easily rupturing and disclosing dusty 

 black-brown spore-mass ; sterile cells hyaline, subspherical or spherical, thin- to medium 

 thick- walled, smaller than the spores; spores reddish to dark reddish -brown, chiefly sub- 

 spherical or spherical, with very prominent polygonal winged reticulations (4-8 /i wide by 

 about 3 ," deep), 28-34 (i in diameter. 



On Poaceae : 



Muhlenbergia Schaffneri elongaia^ Mexico. 

 Type collected in northeastern Durango, Mexico, October, 1905, by C. G. Pringle, and com- 

 municated by E. W. D. Holway. The winged reticulations of the spores are the most prominent 

 of any of the species reported here. 



6. Tilletia cerebrina Ellis & Ev. Jour. Myc. 3 : 56. 1887. 



Sori in ovaries, ovoid, 1-2 mm. in length, showing somewhat through the glumes ; 

 sterile cells hyaline, smaller than the spores, with medium thick walls ; spores rather dark 

 reddish-brown, chiefly ovoid to spherical, with prominent polygonal or irregularly elongate 

 or even cerebriform reticulations often ending in free ridges and at circumference showing 

 as projections (1-2.5 /i, extending out to enveloping membrane), chiefly 24-30 /^ in length. 



On Poaceae : 



Deschampsia caespitosa^ Rocky Mountains. 

 Type locality: Rocky Mountain region, on Deschampsia caespitosa. 

 Distribution : Rocky Mountains. 



7. Tilletia Airae Blytt, Forh. Vid.-Selsk. Christ. 1896' : 31. 1896. 



Sori and spores same as in Tilletia cerebrina, except reticulations of spores regular in- 

 stead of cerebriform. 



On Poaceae : 



Deschampsia calycina, Oregon, Washington. ^^ x 



Type locality: Norway, on Aira caespitosa {Deschampsia caespttosa). 

 Distribution : Oregon and Washington ; also in Europe. 



8. Tilletia fusca Ellis & Ev. Jour. Myc. 3 : 55. 1887. 



Sori in ovaries, oblong, 3-5 mm. long, usually showing plainly between the glumes ; 

 sterile cells hyaline, ovoid to spherical, comparatively thin-walled, small, about 14-20 // in 

 length- spores medium-dark reddish-brown , chiefly ovoid to spherical, occasionally slightly 

 angled' with prominent chiefly regular reticulations (1-4 // wide) showing at circumfer- 

 ence as short blunt projections (about 1 (J- high) so that the ■ enveloping membrane usually 

 closely invests the spore, chiefly 20-25 ^ in length. 



On Poaceae : 



feiZl S//f f^:^wSrfd°aho, Montana, Oregon, Wa.hin.ton, Wyoming. 

 Type locality : Rocky Mountain region, on Festuca microslachya. 

 Distribution : Montana and Wyoming to Oregon and Washington. . ^ „, 



ExsiCcIti: Griff . West Am. Fungi 202, 202a; Seym. & Earle, Econ. Fungi C125. 



9. Tilletia montana Ellis & Ev. Jour. Myc. 3 : 55. 1887. 



Sori iti ovaries, ovoid, about 1 mm. long, showing somewhat between and also slightly 

 through the enveloping glumes ; sterile cells hyaline, usually smaller than the ^Po-^es, not 

 very numerous, with thick wall ; spores reddish-brown, ovoid to spherical, with evident hya- 

 line enveloping membrane about 2-3 /. from spore having a papilla or thread of detach- 



