Part 1, 1906] USTILAGINACBAB 



13 



thin membrane; spores light-brown, ovoid to subspherical, usually prominently echinu- 

 late, 8-13 ^ in length. 



On Poaceae : 



Eragrostis hypnoides iE. reptans), District of Columbia, South Dakota, Wisconsin 

 Eragroshs major, Connecticut, Delaware, Illinois, Indiana, Iowa, Kansas, Massachusetts, 

 . Mississippi, Nebraska, New York, North Carolina, South Carolina, South Dakota, 

 Wisconsin. 



Type locality : Society Hill, South Carolina, on Poa megasiachya {Eragrostis major'). 



Distribution : Connecticut to Mississippi and South Dakota ; also in South America and 

 Europe. 



Illustrations: Bull. Conn. Geol. Nat. Hist. Surv. 5 : /. 52; Bull. Iowa Agr. Kxp. Sta. 54 : /. 



r.^. BxsiCCATi : BUis, N. Am. Fungi 109S ; Rab.-Wint. Fungi 'Bnv.S402; Griff. West Am. Fungi 

 207, 208; Seym. & Barle, Econ. Fungi C 87 ; BHis, Bv. & Earth. Fungi Columb. 2195. 



29. Ustilago Boutelouae Kellerm. & Swingle, Jour. Myc. 5 : 13. 1889. 



Sori in the ovaries, 2-4 mm. in length, more or less concealed by the glumes but at 

 maturity becoming evident on rupture of the covering membrane by the dusty olive-brown 

 spore-mass; spores reddish-brown, chiefly ovoid to spherical, conspicuously echinulate, 

 8-13 11 in length. 



On Poaceae : 



Bouteloua oligostachya, Kansas, Oklahoma, Nebraska. 

 Type locality : Manhattan, Kansas, on Bouteloua oligostachya. 

 Distribution : Nebraska to Oklahoma. 



Illustrations : Jour. Myc. 5 : pi. l,f. 26-^0 ; Trans. Acad. Sex. St. Ijouis 7: pi. 29, f. 11. 

 BxsicCATi : KUis, Ev. & Earth. Fungi Columb. 2192 



30. Ustilago Tricuspidis Ellis & Gall.; Clinton, Jour. Myc. 8: 135. 1902. 



Sori in ovaries, ellipsoidal, about 4 mm. in length, infecting an occasional spikelet and 

 showing between the spreading glumes ; spores medium reddish-brown, ovoid to chiefly 

 subspherical or spherical, rather prominently verruculo-echinulate, chiefly 8-11 p- in length. 



On Poaceae : 



Tridens seslerioides {Tricuspis seslerioides) , Missouri, West Virginia. 

 Type locality : Charleston, Missouri, on Triodea cuprea {Tridens seslerioides) . 

 Distribution : West Virginia and Missouri. 



31. Ustilago minor J. B. S. Norton, Trans. Acad. Sci. 



St. I,ouis 7 : 238. 1896. 



Sori on the leaves and leaf-sheaths, forming ovoid to linear pustules, 1-5 mm. or even 

 longer, with the covering membrane at maturity becoming ruptured and the dusty black- 

 brown spore-mass scattered ; spores light to medium-dark reddish- brown, chiefly ovoid to 

 spherical, minutely echinulate, mostly 7-9 ^ in length. 



On Poaceae : 



Bouteloua hirsuta, Kansas. 

 Type locality : Manhattan, Kansas, on Bouteloua hirsuta. 



Distribution ; Kansas. r o^ ^ r ro 



Illustration : Trans. Acad. Sci. St. I^ouis 7 : pi. 28, f. 3, pi. 29, f. 5, 12. 



32. Ustilago Hieronymi Schrot. ; P. Henn. Hedwigia 35 : 213. 1 Au 1896. 



Ustilago filijera J. B. S. Norton .Trans. Acad. Sci. St. Louis 7 : 237. 9 N 1896. (Type from Kansas, 

 on Bouteloua racemosa.) 



Sori in the leaves and leaf-sheaths, usually forming oblong sausage- shaped pustules, 

 chiefly 1-5 mm. or apparently by terminal coalescence more elongate, at first firmly agglu- 

 tinated but eventually with the thin membrane rupturing and the dusty black spore-mass 

 becoming scattered ; spores dark reddish-brown, more or less irregularly polyhedral, occa- 

 sionally oblong or ovoid, to subspherical, rather obscurely echinulate, 11-16 \i, in some 

 specimens the most elongate rarely 20 //, in length. 



^^ ^A^ropogon curHpendulus {Bouteloua racemosa), Arizona, Kansas, Texas,<^tah. ) 

 Bouteloua breviseta, New Mexico. 

 Bouteloua bromoides, Arizona. 

 Bouteloua eriopoda, Arizona. 

 Bouteloua Havardii, Arizona. 



