144 « w-^ m äiA m lii "J /■ M M Bf f^: 



Oph'uholus sdtirKs (P. K. ct M.) Iio ct Kukibavasui 



Coi:idial stage; I Icliiiiiitliosporiiini aalivnin 1'ammi;i., Kinc; ct Bakke, Iowa 

 A^'i-. Hxi). St.i. Bill. ii6, ]). 178-190. 1910. 



Aseigerous stae^e: rcrithccia developing on dead host tissue (jn cultural media, 

 early erunipenl ; wall black, pseudo[)arcnchyinat<nis ; bodies globose Or sub- 

 globose, 370—530x340 — 470,«; ostiolar beaks well developed, subconical or 

 cylindrical, 80 to i lO// in width, yo to 150// in lu-ight. 



.Asci numerous, h)'aline, thin-walletl, cylindrical or long fusiform, straight 

 or c:irvt-d, shortly stipitate, with round ajjcx, I lo — 220 x 32 — 45,'\ containing 

 I to S, mostly 4 or 8 ascospi.res. 



.\scospores llagelliform or filiform, light olive green in colour, 160— 360X 

 6 — 9,", Coiled in a close helix, 6 to 13 se])tate. 



'i"he present fungus is easily distingLu'shable from the hitherto described three 

 graminicolous species of Ophiobohis, having Helminthosporium comtXvd^ippJuoba'.us 

 heUrostropIiiis Dkecii.sler, 0. Miyabcaiius Ixo et Kuriuavasiii and O. Kiisaiioi 

 NisuiKADo) by tl;c size of all parts in its aseigerous stage, especially by the 

 broader width of its asci as well as by the well known ilifferences in the conidial 

 stage. 



Uctanical Institute, Hokkaitl») Imperial 

 University, Sapporo, Japan 



17 ^ ^75-76 as 301-304 XC '::A:lEi4ii5) 



2) : SSSWrtiS (Ilelminthosporiuiii sativum] lcl^-J-ö&£lS^iiSc<^.|5SK»Ei>-;:. 



\iwif:^>^^%% w- 19 5p ■$. 86 s^ 266 a <^twk') CBsfnsip:) 



3) I'll n a -: 1iftgl^J's;i.= >hX*'J'5Z.V'ii;v.t^':. a^OTSE rwäS 163-192S C:'c 



4) : ;ii-1i#*i£t;3i:^il:-tö 'S/WS VhX'l-v'J-^ASffiö-eöMJflsifcic^i.lcia 



t-2.^?-5j5. iSMisefiiijt-i-HLjKi^iE.'&^Bii i-'4rf (iigfts^) 

 6j ii; m It a-- ±^iiVihrAm. äiSB«isBi2c?fcis-^-ü 655-656H c^^jESif:) 



