No. 5.] USTILAGINEtE OF CONNECTICUT. 1 5 



Ustilago longissima (Sow.) Tul. Fig. I. The sori form 

 more or less distinct, linear striae from a few mm. to length of 

 leaf; the epidermal covering soon ruptures, and the dark 

 reddish brown spore mass becomes scattered from the more or 

 less shredded tissues. The spores are light brown, oblong, or 

 more commonly ellipsoidal to spherical, smooth (or sometimes 

 scarcely granular under an immersion lens), 4-8/z in length. 



Host and Distr. : Glyceria grandis, Shaker Station, June 

 29, 1903. 



This species undoubtedly has a wider distribution than in- 

 dicated above. 



Ustilago Hordei (Pers.) Kell. & Sw. Fig. 46. The 

 sori occur in every spikelet, forming an ovate, adhering, purple- 

 black spore mass, 6-10 mm. in length, and rather permanently 

 covered by the thin, usually transparent plant tissue. The 

 spores are reddish brown, slightly lighter colored on one side, 

 chiefly subspherical or spherical, smooth, and 5-9^, rarely 

 (most elongated) 9-1 i/x, in length. 



Host and Distr.: Hordeum vulgare, Whitneyville, Sept. 

 24, 1902. 



This covered smut of barley is not nearly so common in 

 this state as is the loose smut of the same host. 



Ustilago levis (Kell. & Sw.) Magn. Fig. 45. The sori 

 usually occur in all of the spikelets, are more or less hidden by 

 the enveloping glumes (which may be infected only at their 

 base or in the interior), and form rather permanent, black- 

 brown, semi-agglutinated, ovate spore masses 6-10 mm. in 

 length. The spores are reddish brown, slightly lighter col- 

 ored on one side, chiefly subspherical or spherical, smooth, 

 5-9 n, rarely (most elongated) lip., in length. 



Host and Distr. : Avena sativa, New Haven, July 10, 

 July 28, 1902. 



This hidden smut of oats is not so common in our oat fields 

 as is the loose smut, U. Avence. 



Ustilago Crameri Korn. Fig. 44. The sori occur in all 

 of the spikelets of the spike, destroying especially the inner 

 and basal parts, and form ovate dusty brown spore masses 

 2-4 mm. in length. The spores are reddish brown, ovoid to 



