224 
S. 1TO. 
The present species is often found mixed with Puccinia Phragmitis 
on the same leaves of Phragmites communis. Microscopically the sorus of 
this species is considerably smaller and less pulvinate than that of Puccinia 
Phragmitis. 
The AScidium on Ranunculus repens is very commonly found in our 
country, and they agree exactly to the description made by FISCHER (i) on 
the European plants. Although there is no record in Europe concerning the 
presence of the spermogonia, in our species they are found on the upper 
surface of the leaf; 
40 . Puccinia moriokaensis S. Itö. n. sp. (PI. XII. Fig. i). 
Teleutosori, amphigenous, mostly hypophyllous ; medium sized, oblong 
or sublinear, scattered or gregarious, often confluent (2.5 mm in length), 
naked, with torn epidermis, pulvinate, compact, thick, prominent, black. 
Teleutospores, fusiform or oblong-clavate, apex apiculate, rarely truncate or 
rounded, thickened (6-12 p), base attenuated, not or slightly constricted at 
the septum, smooth, chestnut-brown, darker colored at apex, 44-70 x 12-18 p; 
pedicels persistent, slehder, very long, 80-100 p, often 120 p in length, hyaline 
or light yellowish brown. 
Hab. On Phragmites communis Trin. 
Honshu. — Prov. Fi'cuchi: Morioka (III. Oct. 29, 1905. G. Ya.mada & K. Sawada). 
Distrib. Japan. 
REMARKS. This species is found growing together with Puccinia 
Magnusiana on the same leaf of Phragmites communis. Its sorus is 
comparatively larger than that of the latter species ; so that, macroscopically, 
it resembles rather that of Puccinia Phragmitis. Microscopically, however, 
the present species differs distinctly from Puccinia Phragmitis and ap- 
proaches rather to Puccinia Magnusiana. 
When comparing this species with other species of Puccinia on Phrag- 
mites, I was unable to find any species that would coincide exactly with it. 
From Puccinia Phragmitis (Schm.) Koern., P. Trailii Plowr., P. obtusata 
(Otth.) Ed. Fischer, P. Isiacece (Thüm.) Wint., P. Tepperi Ludw., P. torosa 
Thihn., and P. Trabutii Roem et Sacc., our species is easily distinguished 
by its slender teleutospore and from Puccinia Magnusiana Koern., P. simi- 
