-( 63 J- 



REMARKS. This is a spe.-ies of common occurrence on Clematis lieradeifolia var, 

 stems in our country. The teleutosori occur not only on the under surface of the 

 leaf, but in severe cases also its upper surface. Small, naked, powdery and deep 

 brownish sori are scattered or subgregarious, or sometimes aggregated in a small 

 ring on a discoloured spot. The teleutospores are ellipsoidal or oblong-ellipsoidal 

 in shape, not thickened or rarely somewhat thickened at apex, not or slightly 

 constricted at the septum, and rounded at both ends. The wall is smooth and 

 yellowish brown to deep brown in colour. The measurement of the spores 

 ranges from 29 to 47/i in length, from 16 to 23/z. in breadth. Pedicel is 

 hyaline, short or rarely attaining 35 p in length and subdeciduous. The germ-pore 

 of the upper cell is at the apex, while that of the lower is usually very near to the 

 pedicel, or sometimes exactly at the lower end, in which case the pedicel is slightly 

 deflected to one side, and the spore takes as a consequence a somewhat inclined 

 posture. The germ-pore is provided with a subhyaline, distinctly projecting 

 papilla. The spores mostly germinate in the same season as soon as they are 

 matured, as DIETED (3) has already stated. According to SYDOW, (17) the fungus 

 under consideration is also parasitic on the leaves of Clematis javana in Java. 



Puccinia Thalictri Che vail. 



Chevallier, Flor. Paris 1, 3826, (417). 



Winter, Die Pike, 1, 1884, (.177). 



Saccardo, Syll. Fung., 7, 1888, (680). 



Plowright, Monogr. Brit. Ured. and Ustil., 1889, (20G). 



Sydow, Monogr. Ured., 1, 1904," (550). 



Fischer, Ured. Schw., 1904, (94). 



Hab. On leaves of Tiialictrum minus L. 

 Saghalien. Kaiba Isl. (III. July 1906. T. MIYAKE). 

 Distrib. Europe, N. America, Siberia and Japan. 



REMAKES. This fungus is parasitic 011 many species of Tiialictrum in Europe 

 and America. It is also known to occur in Siberia. Naturally, we expected it also 

 in our country. Hitherto it has only been collected in the island of Saghalien. The 



