S. ITO. 
Remarks. In 1903, Dietel (7) for the first time described this species 
under the name of Uredo Setariae italicae from the specimens on Setaria 
viridis as well as on Setaria italica var. germanica sent to him from Prof. 
S. KUSANO, who had collected them in October 1901 in Tokyo. 
In 1906, Sydow and Butler (i) reported the same fungus from India 
as infecting Setaria intermedia , S. italica , S. glanca and S. verticillata. 
Mr. K. YOSHINO (i) having found the teleutospores of the present species 
on Setaria italica var. germanica in 1906 at Kumamoto, described it and 
proposed to change the name of this species to Uromyces Setariae italicae 
(Diet.). He made the following remarks : “ It seems to me, although it 
sometimes occurs abundantly in Kiushü, that damages caused by this fungus 
are not so severe, because its appearance is always late in season in the 
ripening period of the host-plant.” 
The reasons why we have difficulty in finding the teleutostage specimens 
of the present species may probably be due to the rarity of the teleutostage 
or to the inconspicuousness of its sori. 
b. Teleutosori naked. 
5 . Uromyces Muehlenbergiae S. Ito n. sp. — (PI. X. Fig. 5.) 
Teleutosori, hypophyllous, very rarely epiphyllous ; small, oblong or 
linear, scattered or gregarious, often confluent, naked, pulvinate, compact, 
prominent, blackish-brown. Uredospores frequently mixed in the sori. 
Uredospores , globose, subglobose or ellipsoidal, minutely echinulate, 
17 — 24 x 16—24//; epispore brownish yellow, 2 — 3 or 4// thick; germ-pores 
3 or 4 - 
Teleutospores, subglobose, oval or oblong, apex rounded, angular or 
apiculate, thickened (6—13 //), base rounded, smooth, chestnut-brown, darker 
colored at apex, 18 — 28 x 12 — 21//, rarely 32// in length; epispore rather 
thick; pedicels brownish colored, persistent, 10 — 42//, sometimes 60//; 
paraphyses absent. 
Hab. On Muehlenbergia japonica Steud. 
Hokkaido. — Prov. Ishikari: Sapporo (III. Oct. 1890. K. Miyabe). — Prov. Sh'ribeshi : Zeni- 
bako (Iir. Oct. 9, 1895. K. Miyabe). 
Distrib. Japan. 
