_( 05 )- 



scattered on the under surface of the leaf and on the petiole, but they may also be 

 fouud on its upper surface. Especially, they are found at the joints of the 

 petiole, stem and leaf-blade. In the measurements of the teleutospore, this fungus 

 generally seems to me to be a little broader than those formed on Thalictrum 

 alpinum. finally, JOHANSON (6) has emphasized the fact that the teleutos pores do 

 not germinate in the same summer. However, the majority of the spores on the 

 leaf of Thalictrum tuberiferum are found already germinated as soon as matured. 

 But at the present time, I am inclined to recognize it as identical to the Scandi- 

 navian species, for it coincides exactly in many morphological characters. 



Puccinia Trautvetteriae Sydow et Holw. 



Sydow, Monogr. Ured., 1, 1904, (552). 



Ann. MycoL, 7, 1909, (169). 

 Saccardo, Syll. Fung., 17, 1905. (357). 



Hab. Ou leaves of Traulvetleria polmata Fich. et Mey. 



Honshu. -Prov Uzen : Me. Gwassnn (III. Aug. 7, 1901. G. YAMADA ; HI.. Aug. 14, 1905. 

 K. MiURA).-Prov. Ecbigo: Mt. Tide (III. Aug. 10, 1906. S. ITO); Mt. Ninoji (HI. Aug. 14, 1910. S. ITO). 

 Distrib. N. America, and Japan. 



REMARKS. In 1904, SYDOW (17) described this fungus from a specimen collected 

 by HOLW AY at Mt. Tacoma, Washington. The first record of the existence of this 

 species in our country was made also by the same author in 1909, (18) based on 

 the study of the specimen collected .-it Mt. Myoko, Prov. Echigo by I. MIYAKE. 



The teleutosori in our specimens are found on the under surface of the leaf, 

 and are medium sized, scattered, compact and blackish. The teleutosorus is 

 covered by epidermis and is divided into many small compartments by a thick 

 bed of brown paiviphys' s. Teleutospores are clavate, oblong-clavate or oblong in 

 shape, rounded, truncate or slightly apiculata and more or less thickened (about 3 

 p>] it the apex, not or slightly constricted at the septum, attenuated or sometimes 

 rounded at the base, smooth and brownish yellow in colour. Their measurements 

 are 31 CSxll 16 p. Pedicels are short, yellowish brown, and subpersistent. 



On Mt. lide, Pro/. Echigo, this fungus is commonly met with, wherever the 

 host plant is found. 



