ON THE UREDIN'EAE PARASITIC ON THE JAPANESE GRAMINEAE. 201 
Uredosori, amphigenous, mostly epiphyllous ; minute, oblong or roundish, 
on the yellowish discolored portions, gregarious or scattered, sometimes 
confluent, loosely covered by epidermis, soon after ruptured, pulverulent, 
orange-colored. Uredospores globose, subglobose or broadly ellipsoidal, 
echinulate, light yellowish colored or hyaline, 20 — 28 x 18 — 24 // ; paraphyses 
absent. 
Teleutosori, hypophyllous ; minute or medium sized, oblong or linear, 
gregarious, somewhat arranged in lines, sometimes confluent (rarely 1 cm. in 
length), almost always covered by the epidermis, pulvinate, compact, black- 
or grey-colored. Teleutospores subcylindrical or cylindrical, apex truncate 
or wavy, thickened (5 —6//, rarely 8 //), base tapering toward the pedicel, or 
angular, not or slightly constricted at the septum, smooth, yellowish brown- 
colored, 43 — 62x12 — 20//; epispore thin; pedicels short, brown or sub- 
hyaline, subdeciduous. 
Hab. On Glyceria aquatica Sm. 
Hokkaido. — Prov. Ishikari : Jözankei (II. & III. Aug. 19, 1898. K. Miyabe ; II. & III. Aug. 
24, 1898. T. Nishida) ; Shiroishi (II. & III. Oct. 6. 1907. S. Itö) ; Teine (II. & III. Oct. 25, 1907. S. 
ITÖ). 
On Glyceria tonglensis Clk. 
Shikoku.— Prov. Tosa : Kochi (III. Jan. 2, 1907. S. Kusano) ; Kamoda-mura (II. & III. Oct. 
1907. T. Yoshinaga). 
Kiushü. — Prov. Iligo: Kurokawa-mura (II. & III. Aug. 13, 1906. K. Yoshino). 
Distrib. Japan. 
REMARKS. This species resembles closely Puccima Panicularice 
Arth (1). which is parasitic on Paniculana amcricUna ( = Glyceria grandis) in 
North America. Glyceria aquatica and G. tonglensis ( = G. caspia Trin.) are 
not recorded as the host-plants to the American species. In 1908, 
Dietel (12), examining the specimen on Glyceria tonglensis sent by Mr. 
Yoshinaga, recorded it as the same as the American species. By com- 
paring the type specimen which Mr. YOSHINAGA had kindly sent me and 
many others with the description of Puccinia Panicularice I came to con- 
clusion, that the Japanese and American plants are of two distinct species. 
The points of difference are as follows : — 
1. No record of the uredosori in the American species, the uredospores 
being found mixed within the teleutosori, but in our species the independent 
