192 



S. ITü. 



spores are the characteristic by whicli this species can easily be disting-uished 

 from other coronate species of Puccinia. 



6. Puccinia Epigejos S. Itö n. sp.— (PI. X. V\g. 8.) 



Urcdosori, epiphyllous, sometimes hj'pophj'lloiis ; miiuite. oblony or 

 linear, scattered or gregarious, on discolored spots, sometimes confluent, 

 loosely covered by the epidermis, or naked, with ruptured remains, pulveru- 

 lent, orange-colored. Uredospores ellipsoidal, oval or globose, echinulate, 

 24-36 X 20-26// ; episporc thin, yellowish brown or hj'aline ; paraphyses nu- 

 merous, capitate or clavate. hyaline or subhj-aline, apex not thickened. 



Tclcutosori, epiphyllous, rarel}' hypophj-llous in severe cases, or on the 

 sheath ; small, oblong or linear, scattered or gregarious, often confluent, 

 reaching on the leaves 4 mm. in length, on the sheath 1.5 cm. long, naked, 

 with ruptured epidermis, puhinatc, compact, conspicuous, black. Teleuto- 

 spores cylindrical, long-clavate, apex thickened (4-6//), with the blunt, horn- 

 like processes, base attenuated, not or slightly constricted at the septum, 

 smooth, ferruginous or chestnut-brown, darker at apex, 36-92 x 14-20// ; 

 epispore thin ; pedicels very short, brown, persistent. 



Hab. On Calauiagrostis Epigejos Roth. var. dcusiflora Led. 



Hokkaido.— I'rov. Ishikari : S.ipporo {II. & III. (Jet. 19, 1S94; II. .S: III. Oct. 10, 1895. 

 Is, IIiratsuka; II. & III. ( >ct. 16, 1907. S. Irü); Shiroi;hi (11. Aut;. 8, 1S95. -^'- IIiRAT3UK.\) ; AsaUi- 

 gawa (III. Oct. S, 1907. S. 1x5) -■Xagayania (III. 1 )ct. 7, 1907. S. I ro) ; üaiugawa (II. & III. Sept 

 22, 1907. S. It5). — I'rov. Shiriheshi : Zeniliako (11. Au^. 6, 1895 ; II. .'\ui;. 2, 1899. K. Mivaue;. 



Distrib. Japan. 



Remarks. This fungus is found everywhere in Hokkaido, where Cala- 

 magrostis Epigejos Roth. wir. deiisißora Led. grows abundantly. 



Naked teleutosori are commonly e])ij)liyllous. The teleutos])ores are 

 longer and larger compared with those of Puccinia eorvnata. ]{,specially 

 the uredosjiores are the largest among the coroi'.ate S])ecies of Puccinia. 

 LrikssoN recorded Pnceinia coronata as occuring on the jircsent h(]st-plant- 

 His descrijitions in regard to the measin-ement of the uredospore and the 

 teleutosjjore do not coincide with those of our present species, which I have 

 oonscfjuentK- treated here as a new species. 



