

者 Pi の で ピロ : 
eer 
| until the end of April, and push up one above another forming the ‘thick layers which finally 
reach about 月 
: ¥ 
{ 

#|/ t mm. in thickness. ‘Towards the beginning of May the layers of spores or sori gradually become shriveled 
( 
® 
| and somewhat discolored on the sutface. At last the layers of spores assume a brown color, and becoming 1 

irrecularly wrinkled peel off from the host. This peeling off of. the layers of teleutospores is undoubtedly 
caused by the formation of uredospores underneath, which push up and separate the layers from the host. 
The uredospores thus exposed on the surface of the host are powdery and light-brown in color; they are |j 
easily blown away by the wind. 

‘ae ピ | ' This curious species of Pucctnza was first collected by the botanist of the Challenger expedition at KGbe 
は a ( | on April 28, 1875, and was described by the Rev. M. J. Berkeley in the Journal of the Linnean Society: As | 
清和 | far as my observation extends, this fungus being Round abundantly at different localities where it has been {ff 
collected, cannot be uncommon on the stems of Avundinaria in Japan. The conspicuousness and beautiful 
: 1} appearance of the fungus must have attracted the attention of Japanese botanists both before and after 
i! the publication of Berkeley's description, but I have not yet been able to find any record of it in the Japanese 
botanical literature. 
My repeated observation of the fungus within the grounds of my residence shows that the teleutospores 
| 
first appear at the beginning of November, and continue to form until the appearance of the uredospores at the |ff 
a : | 
ml middle of May of the next year. Specimens collected at different localities at different times of the year also |f 
A - 

