OV THE UKEniNEAE PARASEflC ON THE JAPANESE GRAMINEAE. 245 



Moreover, they observed that the fungus also attacks the wihl sugar cane 

 {Sacck'.rniiii sf>ontaiicinn) in Ja\"a as well as in Australia. 



In igo6, Svnow and BUTLEk (i) identified the Indian fungus on Saccha- 

 riivi arundiiiacca, S.fiisca and .S". spoiitaiicuin with the present species, and 

 remarked that the in'edospore on the last named host-plant differs from the 

 rest by having a thickened apex. 



Our specimens on Sacchariiin ofßcinaniiii from Formosa, as Wakker 

 and Went remarketl, ha\'e the sori mostly on the leaf-blade. Macroscopi- 

 cal appearance also agrees with the description of these authors. Tliej' 

 recorded the sori, however, as amphigenous, saying that those on the inider 

 surface of the leaves are more than those on the upper surface. But I have 

 not been able to find in the Formosan specimens e\"en a sorus on the upper 

 surface. 



I found two kinds of spores in the same uredosori. The one Idnd is 

 the uredospores with equalh' thickened hj'aline wall, and the another is 

 those with a wall thickened especialh' at the ape.x and with brownish-j'ellow 

 epispore. It is xcxy probable that the latter sort of the spores might proba- 

 bly ha\-e led KrÜGER to consider this fungus to be a species of Urom>'ces. 



3. Uredo Yoshinagai Diet., in hhigl., Bot. Jahrb., 37, 1906, (109). 

 Hab. On Antndiiiclla aiioviara Steud. 



Distrib. Japan. 



Re>E\RKS. Dietel (9) has suggested the affinity of the present 

 species to the uredospore oi Piiccinia pcridcnniospora (Ell. et Trac}') .:\rth. 

 on Spartina cyiiosuroidcs of Xorth America. 



r>. I'ar.ipliyses pre»i.-nt in tin; sori. 



4. Uredo jozaiikensis S. Itö. n. sp. — (PI. XII. Fig. 10). 



Uredosori, hyi)ophyllous ; very minute, oblong or ellipsoidal, on the 

 dark brownish spots, scattered, not confluent, rarely arranged in lines, long 

 covered by epidermis, when ruptured puhx-rulent, orange-colored. Uredo- 

 spores globose, subglobose or piriform, echinidate, 15-20x14-17«; germ- 

 pores inconspicuous ; epispore j-ellow ; paraph}-ses clavate, apex slightly 

 thickened (2-3//), }-ellow-ochre colored, 2R-40 X 9-14/.!. 



