Part 1, 1906] USTILAGINACEAE 7 



lighter- colored on one side, usually subspherical or spherical, smooth, 5-9 fi, the most 

 elongate rarely 9-11^, in length. 



On Poaceae : 



Hordeu-m spp. cult., California, Colorado, Connecticut, Illinois, Indiana, Iowa, Kansas, 

 Maine, Massachusetts, Michigan, Mississippi, Missouri, New Hampshire, New York, 

 North Carolina, North Dakota, Ohio, Oregon, South Dakota, Vermont, Washington, 

 Wisconsin; Canada; Nova Scotia; Mexico. 

 Type locality : Europe, on Hordeu-m sp. cult. 

 Distribution : Coextensive with the cultivation of barley. 



Illustrations: Bull. 111. Agr. Exp. Sta. 57: pi. E; Bull. Conn. Geol. Nat. Hist. Surv. 5: 

 /. 46 ; Ann. Rep. Kan. Agr. Exp. Sta. 2 : pi. 2, /. 3-6, pi. 7 ; Bull. Iowa Agr. Exp. Sta. 54 : /. 114 

 U2) ; Brefeld, Utiters. Gesammt.'Myk. 12 : pi. 7,./. SS-SS ; Tubeuf, Diseases PI. /. 159. 



ExsiccATi : Seym. &. Earle, Econ. Fungi 82^', C 69; Ellis & Ev. Fungi Columb. 1484; Kellerm. 

 Ohio Fungi 40; Griff. West Am. Fungi Z?,2J«; Ellis, N. Am. Fungi 1091. 



7. Ustilago levis (Kellerm. & Swingle) Magn. Abh. Bot. Ver. 



Prov. Brand. 37 : 69. 1896. 



Ustilago Avenae levis Kellerm. & Swingle, Ann. Rep. Kan. Agr. Exp. Sta. 2 : 259. 1890. 



? Ustilago Kolleri Wille, Bot. Notiser 1893 : 10. 1893. (Type from Norway, on Avena sativa.) 



Sori in spikelets, forming a black-brown adhering spore-mass, sometimes small and 

 entirely concealed by the glumes but usually evident and destroying inner and basal parts ; 

 spores lighter-colored on one side, subspherical to spherical or rarely more elongate, 

 smooth, 5-9^, the most elongate rarely 11 /i, in length. 



On Poaceae : 



Avena saliva, Connecticut, Illi ncn s. Iowa. Kansas, Maine, New Hampshire, North Caro- 

 lina, Ohio, South Dakota, gtoPj Washington, West Virginia, Wisconsin ; Nova Scotia. 

 Type locality : Kansas, on Avemt sahva. 



Distribution : Nova Scotia to North Carolina, Utah, and Washington ; also in Europe. 

 Illustrations : Bull. 111. Agr. Exp. Sta. 57 : pi. A7, B, S3-^; Bull. Conn. Geol. Nat. Hist. 



Surv. 5 : /. 45 ; BuU. Kan. Agr. Exp. Sta. 15 : pi. II. . ^ ,, ^„. ^ , 



ExsiccATi: Griff. West Am. Fungi 27; Seym. & Earle, Econ, Fungi C 72; Ellis, Ev. & 

 Barth. Fungi Columb. 1996; Ellis, N. Am. Fungi 1092, p.p. 



8. Ustilago perennans Rostr. Overs. K. Danske Vid. Selsk. 



Forh. 1890 : 15. Mr 1890. 



Cintractia Avenae Ellis & Tracy, Jour. Myc. 6: 77. S 1890. (Type from Mississippi, on 

 Arrhenatherum. elatius.) 



Sori in spikelets, more or less destroying the basal and inner parts, sometimes even 

 running down on pedicels, oblong, about 3-8 mm. in length, with dusty, olive-brown spore- 

 mass ; mycelium perennial in perennial parts of host ; spores chiefly subspherical or spheri- 

 cal, occasionally ovate to ellipsoidal, usually lighter-colored on one side, more or less 

 minutely echinulate especially on the lighter side, 5-8 M in length. 



Arrhenatherum elatius {A. avenaceum), Connecticut, Illinois, Indiana, Iowa, Mississippi, 

 New York, Ohio, Vermont, Wisconsin. , ,. , 



Type locality • Europe, on Avena elatior {^Arrhenatherum elattus). 

 Distribution : New England to Iowa and Mississippi ; also in Europe and Asia 

 FllustIItions : Bull. 111. Agr. Bxp Sta.;^57 :^/ C; Bull. Iowa Agr Exp Sta. 54:/. i79; Bre- 

 feld Unters. Gesammt. Myk. 12 : pi. 7,f. 25-28; Tubeuf, Diseases PI. f 157-158. 



EXSICCATI : Ellis & Ev. N. Am. Fungi 1893K 2703; Seym. & Earle, Econ. Fungi 83, C83. 



9. Ustilago Avenae (Pers.) Jens. Charb. Cereales 4. 1889. 



Uredo segetum Avenae Pers. Tent. Disp. Fung. 57. 1797. 

 Ustilago segetum Avenae Jens. Om Korns. Brand 61. 1888. 

 Ustilago Avenae i.foliicola Almeida, Revista Agron. 1 : 20. 1903. 



Sori in spikelets, forming a dusty olive-brown spore-mass, about 6-12 mm. long by 

 half as wide, usually rather completely destroying floral parts, eventually becoming dissi- 

 pated, rarely in leaves ; spores lighter- colored on one side, subspherical to spherical though 

 often more elongate, minutely echinulate, 5-9 /^ in length.- 



On Poaceae : 



Avena fatua California. . Connecticut, Idaho, Illinois, Indiana, Iowa, Kansas, 



^ '''Maine MataS Mississippi, Missouri, Montana Ne- 



Ma NeTSshfre, New Jersey, New Mexico, New York, North Carohna, North 



