Part 1, 1906] USTIIvAGINACEAE 



19 



Usiilago washingtoniana Ellis & Ev. Bull. Torrey Club 22 : 57. 1895. (Type from Washington, 

 on unknown grass.) *- ^x- & i 



Sori in leaves, rarely iji the inflorescence, from short-linear often extending apparently by 

 terminal fusion for several cm., also occasionally fusing laterally to cover most of leaf, at 

 first covered by epidermis but this soon ruptured and dusty brown-black lines of spores 

 becoming scattered and leaves shredded; spores usually ellipsoidal to spherical, occasion- 

 ally irregular, prominently echinulate, chiefly 9-14 // in length. 



On Poaceae : 



Agrostis alba vulgaris, Connecticut, Illinois, Iowa, Missouri. 

 Ammophtla arenaria {A. artindinacea), Connecticut, Maine, Massachusetts. 

 Elymus canadensisglaucifolius, Wisconsin. 

 Elymus robustus, f ^tofi j 



Elymus virginicus^Vdnois. 



Festuca nutans, District of Columbia. 



Phleum pratense , California, Illinois, Indian^^Ucwa, Kansas, Massachusetts, Minnesota, 



Missouri, New Jersey, New York, Qhio. Qltab i?Wisconsin ; Canada. 

 Poa annua, Massachusetts. 

 Poa debilis, Wisconsin. 



Poa pratensis , Delaware, Illinois, Iowa, Ohio, Washington. 

 Sitanion longifolium, California. 



Unknown grass, Massachusetts, New Jersey, New York, Texas, Washington. 

 Type locality : Courtrai, Belgium, on Holcus laiiaius. 



Distribution : New England to Texas, California and Washington ; Canada ; also in Europe. 

 Illustrations : Bull. 111. Agr. Exp. Sta. 57 : pL Q, R4,S 6-7 ; Bull. Conn. Geol. Nat. Hist. 

 Surv. 5 : f. 51 ; Bull. Iowa Agr. Exp. Sta. 54 : /. 120 (2), 122; Jahrb. Wiss. Bot. 7 : pi. 7, f. 2^, 

 pi. 9,/. 14-16. 



ExsiCCATi: Seym. & Earle, Econ. Fungi 76, 77, C89, C90, C91, C 148 ; Ellis & Ev. Fungi 

 Columb. 1370; Ellis, N. Am. Vnn^ 1498 ; Underw. & Cook, Illust. Fungi 58. 



54. Ustilago Calamagrostidis (Fuckel) Clinton, Jour. Myc. 8 : 138. 1902. 



Tilleiia Calamagrosiis Fuckel, Sytnb. Myc. 40. 1869. 



Sori in leaves, more rarely also in axis of inflorescence and even in spikelets, generally 

 sliowing as linear striae, distinct or often more or less confluent, at first covered by epider- 

 mis, upon rupture disclosing dusty brown-black lines of spores ; spores medium to dark 

 reddish-brown, rather irregularly oblong to spherical, usually angular, prominently verru- 

 cose, 13-20 fi in length. • 



On Poaceae : 



Calamagrosiis breviseta (C Pickeringit) , New York. 



Calamagrosiis canadensts, Vermont. 



Calam-agrostis canadensis acuminata, Wyoming. 

 Type locality : Europe, on Calamagrosiis epigeios. 

 Distribution : Vermont, New York and Wyoming; also in Europe. 

 ExsiCCATi : Griff. West Am. Fungi 228. 



55. Ustilago macrospora Desmaz. PL Crypt. II. 1727. 1850. 



Tilletia serpens Karst. Fung. Fenn. 599. 1866. 



Tilleiia aculeaia Ule, Abh. Bot. Ver. Prov. Brand. 25 : 213. 1884. (Type from Berlin, Germany, 



on Agropyron repens.) 



Sori in leaves and glumes, generally showing as linear striae, but often more or less 

 merged, at first covered by epidermis, but this ruptiiring and disclosing black-brown dusty 

 lines of spores; spores medium to dark reddish-brown, chiefly ovoid to spherical or occa- 

 sionally somewhat irregular and more elongate, coarsely verrucose, at circumference 

 usually showing the projections as tinted blunt scale-like appendages, sometimes even semi- 

 reticulate, 12-19 ^ in length. 



On Poaceae : 



Agropyron repens, Iowa, Massachusetts, Wisconsin. 



Agropyron spicatum, Oregon. 



Agropyron spic^/M^i^nerme , Washington. 



Agropyron s; 



Elymus sp.,^^^ 

 Type locality : ±<Tance, on Bromus pinnatus. 



Distribution : Massachusetts to Washington and Utah ; also in Europe. 

 ExSiccati : Ellis, Ev. & Earth. Fungi Columb. 1900 ; Seym. & Earle, Econ. Fungi C 141. 



