156 CD. Sherbakoff 



nidiophoris laxis demum dense, fruticosis, continuis vel in parvis magnisve 

 (usque ad | cm. diam.) sporodochiis; aerio mycelio semper plene mature, 

 ex hyphis subtilibus sed macroscopice distinctis composito, ex albo paulum 

 "carmine" (R) prope substratum; substrate in duro agare glucoso Solani 

 tuberosi e pallide " cinnamon " (R) et " salmon color " (R) diffuse " Corinth- 

 ian" et "brick red" (R), plus minusve distincte zonato. 



Hab. In tuberibus putridis Solani tuberosi, New York, Amer. bor. 



Measurements of conidia from cultures on different media are as follows: 



On slightly acidified hard potato agar, culture thirteen days old; conidia 



from aerial mycelium: 



Conidia : 0-septate, 7 per cent 

 1-septate, 54 per cent 

 2-septate, 6 per cent 



3-septate, 22 per cent, 31.5 x 3.75 (21-45 x 3.1-4.1)^ 

 4-septate, 4 per cent, 40 x 4.1 (32-49 x 3.5-4.7) m 

 5-septate, 7 per cent, 43 x 4.1 (33-53 x 3.9-4.7)^ 

 6-septate, rare, 45 x 4.5^^ (onlj^ two measured) 



On potato tuber plugs, culture forty-six days old; conidia from a sporo- 



dochium 2 millimeters in diameter: 



Conidia: 3-septate, 63 per cent, 37 x 3.4 (27-49 x 3-3.6)^1 

 4-septate, 22 per cent, 41 x 3.7 (40-45 x 3.5-4)m 

 5-septate, 15 per cent, 43 x 3.7 (40-45 x 3.5-4.1)/i 



On red raspberry cane plug, culture sixty days old; conidia from a sporo- 

 dochium about 2 millimeters in diameter: 

 Conidia: 3-septate, 29 per cent, 37 x 3.9 (28^1 x 3.5-4.2)^ 

 4-septate, 31 per cent, 40 x 3.9 (35-43 x 3.5-4.2) ^ 

 5-septate, 40 per cent, 44 x 4 (36-46 x 3.5-1.5) /x 



On potato stem plug, culture eighty-three days old; conidia from a 

 sporodochium about 1| millimeters in diameter (many of the conidia much 

 deteriorated) : 

 Conidia: 3-septate, 20 per cent 



4-septate, 16 per cent 



5-septate, 64 per cent, 48 x 3.4 (44-51 x 3. 1-3. 7) m 



