84 



BOTANICAL MAGAZINE. 



[Vol. XIX, 



Uromyces amurensis Kom. 

 (Hedw. 1899. p. (54)) 

 Syn. U. Oedipus Diet. (Eug. Bot. Jahrb. Bd. XXXIV. 1905. p. 583). 



This fungus was first discovered by Komarow on Oladrastis amurensis 

 Benth. eastern Siberia (1895-1896) and is known also in Japan on the 

 same host from the following localities : — 



Teleutostage — Sapporo in Hokkaido. Oct. 1889 (K. Miyabe). 



Uredo and teleutostage— Mt. Fuji. Aug. 1901 (K. Tamura). 



Aecidium, uredo and teleutostage — Tosa. June 1903 (T. Yoshinaga). 



It is of special interest to note that the uredo and teleutosori are pro- 

 vided with hyaline membrane surrounding the spores. Unlike paraphyses 

 or pseudoperidia, it consists of the mycelia fused together and envelops the 

 spores until they would come to maturity. 



1. Uromyces shikokianus. p, paraphyses. 



2. U. Cladrastidis. 



3. U. amurensis. 



X400 



KEY TO THE SPECIES OF UROMYCES ON SOPHORA AND 



CLADRASTIS. 



The following key is intended to avoid the confusion arising during 

 the determination of Uromyces parasitic on Sophora as well as Cladrastis, 

 which are sterile. J) 



1) S. Kusano, Notes on the Japanese Fungi. I. Uredinen? on Sophora. Bot. Mag., 

 XVIII. 1904. p. 1. 



