1919] 



MATSUMOTO — CULTURE EXPERIMENTS WITH MELAMPSORA 



315 



TABLE III 



SHOWING THE RESULTS OF INOCULATIONS OF CHELIDONIUM 



WITH TELEUTOSPORES 



Inoculation 

 material 



Date of 

 inoculation 



Result 



Date of 

 first sori 



Teleutospores from 

 Salix Capraea 

 Salix babylonica 

 Populus nigra 

 Pop ul ns balsamifera 



June 10 

 June 10 

 June 10 

 June 10 



+ 



June 21 



t • • t 



i t 



with the teleutospores obtained from Salix babylonica may 

 described as follows: 



Aecidiosp 



Caeomata hypophyllous, clustered or isolated 



surface, small, roundish 

 17 m; membrane hyaliiu 



roundish or oblong, 14-18X13- 

 verruculose. 



Melampsora on Salix Capraea 



From the fact that our Japanese Melampsora on Salix Capraea 

 is morphologically more or less similar to Mela?npsora Larici- 

 Capraearum described by Klebahn, the writer was inclined to 

 assume that the first-named form might have its aecidial stage 

 on Larix sps., consistent with the observations made in Germany. 



In April, 1916, a large number of experiments were under- 

 taken by inoculating Larix decidua with sporidia obtained from 



Capraea, b 



has been secured 



successful 



obtained by sowing Caeoma Abietis pectinatae upon Salix 



Capra 



been unable to establish 



1. 



Melamps 



the com 



Summary 



ora on Salix Urbaniana requires Larix sps. for 

 of its life cycle. For this species the name 

 Melampsora Larici-Urbaniana Matsumoto is proposed. 



2. A Melampsora on Populus balsamifera found in Japan is 

 identified with Melampsora Larici-populina described by Kle- 

 bahn in Germany. 



