aprtt., 1907.] KUSANO.—A NEW SPECIES OF TAPHRINA ON ACER. 67 



nearer to T. polyspora or rather to T. lethifera, but as these 

 latter species are described as having no stalk cell T. nikkoensis 

 can not surely be identical with either of them. It is also by 

 no means identical with even those species with stalk cells, T. 

 acerina and T. acericola. In the latter species the stalk cells 

 are broader than the asci themselves while in T. nikkoensis 

 they are approximately as broad as the asci. 



