
Notes on Some Tananese Uredineae. / 生計 i | “uy . Ps 


Ke 3 2 pedicels filiform, hyaline, coloriess, variable in length according to the position of spores in the sorus, the 1 
ee af | : | も 
i" | | longest about 1 mm. long. | es mal 
3 UREDOSPORES. Spores pulverulent, light-brown, globose or subovoid, 20-27 4. long, 20-24 ps. broad; | 
7 Cas | epispores thin, echinulate. : 
Hab. On the stem of living Arundinaria japonica, Sieb. et Zuce. 
I collected specimens of this fungus at Tdkyd on March o and November 8, 1891, and at Oiso in the 
ee oe 
province of Sagami on May 28, of the same year. I have also received specimens collected on January 12, 
1891, at Funao-mura in the province of Shimosa. 
— 
The sori of this fungus make their first appearance on the stem of Jedake or Ay undinaria japonica at the 
beginning of November. At this stage the presence of the fungus is recognized by the decolorization of the 
epidermis of the internodes of the host, the epidermis being upheaved by the teleutospores of the fungus grow- |f Y 
ing beneath it. The shape and size of the sori vary considerably; they form small roundish or linear patches, |f 
elonaated masses of irregular shape. When the edidermis of the part of the host attacked by the fungus is |f 
removed by means of a knife, the exposed sori are of a light- -orange color, As the sori grow the epidermis of {ff 
the host is naturally broken off, and they either become confluent and form leathery layers partly of entirely = ae 
; し \ f % に 
surrounding the internode of the host, or remain as isolated patches or specks. The spores are firmly attached 

/ 
to the substratum by their filiform pedicels, and form very compact masses. The ey are continually g generated 
