FusARiA OF Potatoes 263 



On hard potato agar, culture one hundred and fifty days old; conidia 

 from a sporodochium, strain 96 : 

 Conidia: 0-septate, 10 per cent 



1-septate, 12 per cent 



2-septate, 7 per cent 



3-septate, 71 per cent, 36 x 5.1 (33-40 x 4.4-5.5)^ 

 Chlamydospores: 0-septate, in conidia, average size 8.8 x 8/x 



On potato tuber plug, culture eighty-five days old; conidia from a pseu- 



dopionnotes, strain 66: 



Conidia: 0-septate, 5 per cent 

 1-septate, 8 per cent 

 2-septate, 4 per cent 

 3-septate, 68 per cent, 34.2 x 4.5/x 

 4-septate, 9 per cent, 42 x 4.6)u (only one measured) 

 5-septate, 6 per cent, 55 x 5.5/i (only two measured) 



On rye straw, culture fifty-four days old; conidia from a sporodochium, 



strain 96 : 



Conidia: 0-septate, 2 per cent 



1- to 2-septate, 5 per cent 



3-septate, 89 per cent, 33.5 x 5.1 (30-37 x 4-6) /^ 



4-septate, 4 per cent, 33 x 6.1/^ (only one measured) 



On rye straw, culture fifty days old; conidia from a sporodochium, 

 strain 66: 

 Conidia : 0- to 2-septate, 5 per cent 



3-septate, 88 per cent, 30.5 x 4.9 (28-33 x 4.5-5.3) m (only three 



measured) 

 4-septate, 7 per cent, 33.2 x 5.1 /x (only one measured) 



On rye straw, culture forty-three days old; conidia from a sporo- 

 dochium, strain 53 : 

 Conidia: 0- to 2-septate, 23 per cent 



3-septate, 73 per cent, 35 x 5 (25-46.2 x 4.7-5.3)^ 

 4-septate, 4 per cent, 50 x 5^ (only one measured) 



On potato hard agar, culture eight days old; strain 190: 

 Conidia: 0- to 2-septate, 2 per cent 

 3-septate, 80 per cent 

 4- and 5-septate, 10 per cent 

 6- and 7-septate, 8 per cent, 58 x 5.6 (57-60 x 5.2-6) m 



