Part 1, 1906] USTILAGINACBAB 16 



tough hispid membrane which upon rupture discloses an olive-brown dusty spore-mass ; 

 spores ovoid to spherical, occasionally more elongate, rather bluntly echinulate or even 

 verruculose, chiefly 10-14 ^ in length. 



On Poaceae : 



Echinochloa Crus-galli {Panicum Crus-galli), Arkansas^jColorado, Connecticut, Illinois, 



Massachusetts, Minnesota, Oregon, South Dakota, ^mahJ Washington. 

 Echinochloa Walteri {^Panicum Walieri), Delaware. \^- 



Type locality : Salt I^ak e City. Utah, on Panicum Crus-sralli {Echinochlo a O'us-zalH^ • IlS 

 Distribution : New Wglan^ to Delaware, Utah and Washington: 



Illustrations : Bull. Iowa Agr. Exp. Sta. 54 : /. i20 (,6) ; Ber. Deuts. Bot. Ges. 14 : pi. 15, 

 f. 1-14. 



BxsiCCATi : Sydow, Ust. 125, 179 1 Vest. Micr. Rar. Sel. 324 ; Griff. West Am. Fungi 212, 212a; 

 Seym. & Barle, Econ. Fungi C67. 



37. Ustilago heterogena P. Henn. Hedwigia 43 : 155. 1904. 



Sori on various parts of host, most frequently at nodes of the stem, involving the axial 

 growths and transforming them entirely or their base into a conspicuous tumor, ovate to 

 elongate-lanceolate, often 40 by 15 mm., covered by the thick, smooth envelope of plant 

 tissues, finally rupturing and disclosing a brown-black semi-agglutinated to dusty spore- 

 mass ; spores medium to dark reddish-brown, chiefly ovoid to spherical, conspicuously 

 echinulate, 10-14 ^, rarely 16 ^, in length. 



On Poaceae: 



Lepiochloa scabra Louisiana. 

 Type locality: Brazil, on Lepiochloa virgata. 

 Distribution : Louisiana ; also in South America. 



38. Ustilago Zeae (Beckm.) Unger, Einfl. Bodens 211. 1836. 



Lycoperdon Zeae Beckm. Hannov. Mag. 6 : 1330. 1768. 



Uredo Zeae Schw. Schr. Nat. Ges. Leipzig 1 : 71. 1822. 



Ustilago Maydis Corda, Ic. Fung. 5 : 3. 1842. 



Ustilago Schweinitzii Tul. Ann. Sci. Nat. III. 7 : 86. 1847. 



Ustilago Zeae-Mays Wint.; Rab. Krypt. Fl. 1^ : 97. 1881. 



Ustilago Euchlaenae Arcang. Brb. Critt. Ital. II. 1152. 1882. (Type from Italy, on cult. Eu- 



cMaena luxttrians.) 

 Ustilago Mays-Zeae Magn. Deuts. Bot. Monats. 13: 50. 1895. 



Sori on any part of the host, usually prominent, forming irregular swellings from a 

 few mm. to over a dm. in diameter, at first protected by a sort of false white membrane 

 composed of plant cells and semi-gelatinized fungous threads, soon rupturing and disclos- 

 ing a reddish-brown spore-mass ; spores ellipsoidal to spherical or rarely more irregular, 

 prominently though rather bluntly echinulate, 8-11 n, the most elongate 15 ^, in length. 



On Poaceae * 



Euchlaena luxurians, Alabama, Connecticut, Illinois, Iowa, Kansas, Wisconsin. _ 



Zea Mays, Alabama, California, Connecticut, District of Columbia, Georgia, Hhnois, 

 Indiana, Iowa, Kansas, Maine, Maryland, Massachusetts, Michigan.Mmnesota, Mis- 

 sissippi, Missouri, Nebraska, New Jersey, New York, North Carolina, Ohio, Okla- 

 homa Pennsylvania, Rhode Island, South Carolina, South Dakota, Texas, Vermont, 

 West Virginia, Wisconsin, Utah ; Ontario ; Mexico ; Cuba ; Porto Rico. 

 Type locality : France, on Zea Mays. 



Distribution : Coextensive with the cultivation of maize. c >.7 o v a ^^^ 



illustrations: Ann. Sci. Nat. Ill 7 : //. 2,fl-17; Jour.^ Myc.Z- pi 2-7; Amu Rep. 

 Conn. Agr. Exp. Sta. 1889 : pi. 2,f. 15 : Trans. Acad. Sci. St l^omsjl -pi. 25 f ^f / Ann Rep. 

 Ind. Agr Exp. Sta. \Z: pi. 10-13; Bull. 111. Agr. Exp. Sta. bl 'Jl. ^^H,! J,K,R3 Ti-J Bull. 

 Conn Geol Nat Hist. Surv. b' f. 2,55 ; Bull. Kan. Agr. Exp. Sta. ^2'. pi. 1-3,5,7 ; Brefeld, 

 &s. Gesamml Myk. 5 :^/. 4, f. 1-16, li : pi. 2-5; Ber. Deuts. Bot. Ges. 20: pi. 11; Bull. Soc. 



""^^IsiccATf faV''^^^^^^^ Am. 281; Underw. & Cook, Illustr. 



Fuu?i5i Seym & Earle7Ecou. Fungi 71 k-b, C 97, C 98, C 99, C 100 ; Shear, N Y. Fungi 135 ; 

 Sydow XJst 757 :• Griff. West Am. Fungi 99 ; Kellerm. Ohio Fungi 16 ; Kellenn. & Swingle, Kan. 



Fungi 25. 



39. Ustilago Kellermanii Clinton, sp. nov. 



Sori involving terminal and nodal growths (aborting the inflorescence), converting 

 thetn into very elongate outbreaks, enwrapped by the leaf-sheaths but with the internal 

 tissues shredded and mixed with the dusty brown-black spore-mass ; spores dark reddish- 

 brown, ovoid to spherical, occasionally more elongate or irregular, prominently and coarsely 

 verruculose, chiefly 10-14 /^ in length. 



