iny to my own measurement the matured spores arc 56-72 x 15-20/^ in size, and 

 at each septum they are more or less constricted. From the terminal light colored 

 cell, three or four and sometimes more wart-lilce swellings appear in the early 

 stage of their development ; antl the swellings grow little by little into the threads 

 or hairs resembling to the setae of Pt;s/a/ossia-spoTes. One of these hairs is 

 always first produced from the tip of the uppermost ceil and the others then suc- 

 ceeding from the side more often near the septum of the same cell. They are at 

 last very long, becoming often longer than the length of the spore, and always 

 hyaline. These hairs or setae are sometimes branched near the base and as a con- 

 sequence they present an appearance of the presence of many hairs. The setae 

 are 2.5-3 /^ in width at the basal portion. 



The morphological characters above delineated are entirely similar to the descriptions and remarks 

 of Ceratojthorimi selosiim and Peslalozsia I.upini given by various autliors. The latter name ouyht to be 

 treated as a synonym of the former. Although the measurement and the number of the cells of the spores 

 are more or less different according to the authors as shown in the foUowiii.2 ta'ule, such a small difference 

 has little value in distinguishing the species, when other important characters are in pcr.'ect accord. 



Author 



Size of the spore 



Nuiaiber of the cells of 

 a spore 



Given name of the fungus 



Kl RCHNEK 



Wagner & 



SoKAUEK 



The writer 



40-80 X 15-19 !i 

 54-60 X 16 /i 



56-72 X I 5-20 // 



3-8 (mostly 6) 

 5-6 



5-6 (rarely 7) 



Ceratopliorum setosum 

 Pestahszui Lupini 



Ce/atophoruin sctosiitn 



The spores germinate usually first from the basal cell, though they may also germinate from an upper 

 dark colored cell— the next tell from the setae-bearing terminal cell, or from both of them at the same time. 

 Any other cells have also the power to germinate under suitable conditions. These germ-tubes are rela- 

 tively wide in diameter, branchin.g at once and forming transparent septate mycelium. For germination 

 tests, distilled water and host-plant decoction were used in our e.>;periments. 



5. Name of the Causal Fungus 



From the morphological characters, we may easily recognize the present fun- 

 gus to be a member of the family Dematiaceae of the Hyphomycetes. A careful 

 consideration of the fungus, both in the natiual condition and in the artificial 

 culture, has led the writer to believe it to be Ceratopliorum setosum Kirchner, as 

 already stated. The genus Clrirfo/'/^ör«;« was first described by S.vccakdo (9) in 

 1880; and in 1895 he founded the subgenus /Vt'Wt-ÄatYrt in his Sylloge Fungorum, 



