ON THE UKEDINEAA PARASITIC ON THE JAPANESE GRAMINEAE. 239 



Hokkaido. — Prov. IshiUari: Hoioniui (I. July 9, iSgb. J. Kasaiiaka; I. July 20, 1900. G. 

 Vamada). 



Distrib. P'urope, America and Japan. 



Remarks. The teleutostage of this fungus is found on Agropynmt 

 giauctiin, A.jnnceiiin and A. occidcntalis in Europe and America ; but it is 

 not yet collected in our country. The aecidial stage is commonly found in 

 different places of our countr}-. 



DiETEL (3) after examining the J.q^anese specimens identified them as 

 the yEcidium stage of Puccin'ur Agropyri. I have also carefully compared 

 our .'Ecidium with American specimens of .Ecidiuiii Clcviatiiiis. and have 

 noticed no differences between them. 



DIORCHIDIUM Kalchl. 



1. Diorchidiitm levigatum Syd. et Butl., in Ann. Mycol., 5, 1907, 

 (5oo).-(Pl. XII. Fig. 7). 



Uredosori, amphigenous, mostly epiphyllous ; minute, oblong or round- 

 ish, on the brownish or blackish discolored spots, scattered or gregarious, 

 rarely confluent, loosely covered by epidermis or naked, pulverulent, some- 

 what pulvinate, dark yellowish-brown. Uredospores, broadly ellipsoidal, 

 subglobose or globose, densely echinulate (distances between spines about 

 2-3/-/), 24-30x18-25«; epispore brownish yellow, 2-3/« thick; germ-pores 

 2, equatorial, inconspicuous ; paraphyses absent in the sori. 



Hab. On Oplisincims coinpositiis Beauv. 



Loochoo. — Shuri (II. & III. Nov. 27, 1S98. N. Hiratsuka). 



Formosa. — Daihoku (II. Nov. 17, 1906. T. Kawaka.mi & R. Suzuki). 



Distrib. India and Japan. 



Remarks. The species belonging to this genus are generally found in 

 the tropical or subtropical regions of Asia, Africa and America. The total 

 number of the species is not abundant. 



In Japan, the presence of the species of this interesting genus have 

 remained unknown up to this time. We have in our University Herbarium, 

 two specimens of the present species collected in Formosa and Loochoo on 

 OpliSDiciius covipositus. Our species coincides exactly to the description 

 of the fungus b}- SvDOW and BUTLER (2) in the characters of teleutospores. 



