248 



BOTANICAL GAZETTE 



[OCTOBER 



TABLE II 

 Inoculated December 13. Growth ix Mil 



Plate 



Drops of normal 

 acid or alkali 



per tube 



FuUer's 

 scale 



14 



IS 



1 







16 



1 



i 



17 



1 



iS 



1 



19 



^ ^ — _, ^^ 



Average 

 per day 



25 



acid 10 



+ 40 



? 















27. . . . 



acid 5 



+ 20 



? 







1 







1 









49, . . . 











w 



2 



growth 



3 



1 



7 



12 



15 



18 



31 



31 



alkali 5 



-ig 



1 

 1 



3 



S 



II 



14 



16 



2.6 



29. . . . 



alkali 10 



-39 



? 



2 



3 



8 



9 



10 



1.6 



34 • • • • 



alkali 15 



^59 



? 











2 



3 



4 



-7 



2,3- ■■• 



alkali 20 



-99 



? 











gr- 



5 



6 



I. 



It is clearly seen from these data that a neutral medium or one 

 only slightly alkaline favors the growth of this fungus. 



In the plates with 10, 15, and 20 drops of normal alkali there was 

 no formation of zones at all. In the plate bearing 5 drops of alkali 

 two zones were formed. 



The four cultures inoculated December 8, grown at room tem- 

 perature, two in light and two in darkness, agreed almost absolutely 

 in rate of growth, a total difference of i or 2'""' noted at the end of 

 ten days' growth being so small as to be insignificant. 



\ji Lfujiiv tri cur n/U'O fucum. \_,uiLUlCb ill ctgdl Wi 



at room temperature in the dark grew as follows : 



til vain 



L?U3 J.1U.I, 



1 



,ll\,±XLO 



TABLE III 

 Inoculated December 13, 1906. Growth in mm. 



Plate 



Medium 



Dec. 14 



Dec. 15 



Dec. 16 



Dec. 17 



Dec. 18 



1 



^ Dec, 20 



1 



Dec. 21 



1 



Jan, 12 





1 



17-21° 



I 8-20° 





12-18° 





4 





9- 

 10 





Pure agar 



Grew 



4 

 4 



6 



7 



II 



TI 



14 







65 



70 



7-' 

 8., 





Pea agar 



X 



1 



4 

 4 



6 

 6 



TO 

 10 



13 

 14 





1 

 1 



18 

 18 



15 

 16 



1 



1 



I % peptone 

 agar 



! 





3 

 4 



S 



7 



9 



10 



9 

 II 



i 

 1 





1 

 1 



1 



1 

 1 



70 

 70 



II. 

 12, 



1 



1% glucose \ 

 agar 





S 

 5 



9 

 8 



1 



15 

 13 



19 



1 







80 

 80 



13 

 14. 





1 



1 



5% glucose 



agar 





6 

 6 



II 

 II 



16 

 16 



1 



21 

 21 



1 



1 

 1 



1 



70 

 75 



17- 

 18. 





1% starch 

 agar 



1 



1 



4 

 4 



1 



6 



7 



10 

 II 



II 

 12 



1 



1 

 1 



1 

 1 



1 





i 



