ox TlIK UREDI\]:;AE PARASITIC ON THE JAPANESE GKAMINEAE. 243 



is commonly found on the leaves of Elyuuts areiiariiis, but is also rarely 

 found on Elyinus Sibiriens in Hokkaido. 



2. Eostrupia Miyabeana S. Ito. n. sp.— (PI. XII. Fig. 8). 



Un'dosori. amphigcnous, mostly epiphyllous ; small, oblong or elliptical, 

 scattered or gregarious, on the brownish discolored spots, naked, with torn 

 epidermis, pulverulent, orange-colored. Uredospores globose, subglobo.se 

 or broadly ellipsoidal, echinulate, 18-28 x 14-16,«; epispore 1-211. or 3// thick, 

 hyaline or subhyaline ; paraphyses absent. 



Te/ciitosori, hypophyllous or on the sheath ; small, oblrjng or sublinear, 

 scattered or subgregarious, long covered by the epidermis, sometimes con- 

 fluent, somewhat pulvinate, black; separated into small compartments bj' 

 the thick bed of brown paraphyses. Teleutospores cylindrical or oblong- 

 clavate, apex slightly thickened (3-5«), truncate or obliquel)- jKjinted, rarely 

 rounded, base attenuated or rounded, not or very slightly C(.instricted at the 

 septum, 2-4 septated, smooth, blackish ferruginous, darker colored at apex, 

 32-52 X 15-24/'-; pedicels short, brown, subdeciduous. 



Eab. On Brae Iiy podium ja f'oniciiin Miq. 



Hokkaido.— Prov. Ofliima : llakoilate (11. & IH. July 1S97. T. K.^\VAKAMI). 



Kiushü.— Prov. Pliy;o: Iniizu-mui-a (III. June g, 1904; 11. Fel). 12, 1905. K. VosiiiNO). 

 On Bracliypoiiiitm piniiatuvi Beauv. 



Hokkaido. — Piov. Ishikari : P'inon (III, .\ug. 11, 1S91. K. Miva!:f.). 



Distrib. Japan. 



Remarks. The case of Rostrupia parasitic on the leaves of Bracliy- 

 podiuin has hitherto not been recorded. In our specimen, it is true that the 

 two-celled teleutospores are often found mixed, but the three-celled ones 

 are far more common. The four-celled ones are comparatively few in 

 number. 



The length of the teleutospore ot this fungus is shorter than that of 

 Rostnipia Elyiiii, but its breadth is generally wider. Its color differs from 

 that of the latter species being darker and the lowest septum is sometimes 

 longitudinal or oblique. 



