

8 



Curtis : Turgidity in Mycelia 



* 



assignable reason. From other experiments it is not at all possible 

 to conclude that temperature is the cause of the rise. 



In Table II. will be found some of the results obtained by 

 germinating spores of Mucor in a nourishing solution containing 

 4$ KNC 



3 



and transfering to a simple nourishing solution. 



s 



com 



forces of the plants grown under the different conditions ; the slight 

 variations indicated by the — or the + are of little importance as 

 they are found to be equally distributed throughout my experi- 

 ments. The turgor force was not always as constant as indicated 

 in column 5, some tests showing a force of 7 and a few of 9. In 

 the majority of cases it was very constant. 



In Table III. are given a few of the results of experiments on 

 Botrytis. 



III. 



3 



4 



5 



21. 

 22.2 



22.6 



21. 



21.8 



23-4 

 24. 



0-4 



l 6 



( ( 



it 



<< 



a 



», 



.41 min 

 .60 



1. 12 



1. 10 



50 

 1-35 



i-53 



22 



22 n. p 



22 



23 



22 n. p. 



21 



23 



2 3 

 21 



1 



IV. 



3 



4 



5 



22. 



22.8 



21.6 



23-4 

 22.6 



22.6 

 24. 



4-0 



50 min. 



12 n. p. 



51 



55 

 42 



62 



38 

 46 



12 



12 + 



12 

 12 



12 



12 



13 

 12 



12 



12 

 12 



12 

 12 



The generally longer period 



IV 



is not due apparently to the considerably higher turgor force de- 

 veloped in the plants, since the difference of turgor in the 4% and 

 null solutions is practically the same in both Botrytis and Mucor, i. 



On the other hand the periods of recovery found in Table 



e. 9 10. 



III. are somewhat shorter than in Table I. 



The tests upon Penicillium were more unsatisfactory than any ot 

 the others owing to the fact that the turgor varied considerably 



