47 



did not mention about the presence of the psondoperidia. He writes 

 that "sporas concatenatas, 40 /i 1. 3 /i crass., catenulas quator-soxsporas." 

 Recently Prof. Gobi (,) of Kasan (Russia) described the same fungus 

 collected in the district of Ural and western Shiberia, in which he 

 mentions about the presence of pseudoperidia and also about the fact 

 that the uredospores are formed singly, not in chains as described by 

 von Thumen. This be also affirmed by examining the authentic 

 specimens. As to the teleutospores of this species, no observations 

 have yet been made by these authors, and it remained doubtful to 

 which genus of the Melampsorae it belongs. 



We have collected the last, autumn the same fungus on Alnus 

 incana in the vicinity of Sapporo, in which the uredosori were deve- 

 loped luxuriantly on the under surface of the leaf showing a reddish- 

 orange appearance. In those collected in the late autumn, besides the 

 uredospores, the reddish-brown teleutosori were also found. The teleu- 

 tospores were one celled, intercellular, formed directly beneath the 

 epidermis near the uredosori, and also often in the uredosori after the 

 uredospores were dispersed. On April 19 (1896), I found the hiber- 



had already germinated showing a yellowish powderly appearance. 

 After placing them in a moist chamber for 24 hours, they all germi- 

 nated producing a long promycelium from the apex of each spore. 

 The promycelium was divided into 4 cells, and from each of these, a 

 single sterigma of 15-30 n long was produced, and at its tip a 

 spherical sporidium of 8-11// in diameter was borne. (Fig. 11.) 

 From these morphological characters it is certain that this species 

 belongs to the genus Melampsora and is nearly related to Melampsora 

 hetulina. 



III. Pucciniastrum Tiliae Miyahe Ms. 

 Plate TV. Fig. 12-20. 

 Uredospores.— Sori hypophyllous, small, scattered, light 

 pseudoperidia persistent, almost spherical, with 

 top; spores roundish or ovate, often oblong, 19 

 15 ft broad, usually 22x15,; echinulate, content* 



