1291] 
WEBB—GERMINATION OF SPORES OF CERTAIN FUNGI 
TABLE II 
303 
ASPERGILLUS NIGER. AVERAGE PERCENTAGES OF SPORE GERMINATION 
IN CERTAIN LIQUID CULTURE MEDIA AT DIFFERENT TEMPERATURES 
D AT VARIOUS HYDROGEN-ION CONCENTRATIONS. 
Temp. 
| Hydrogen-ion concentration, Pa 
Media 
2.5| 3.0| 3.6| 5.0 6.2 6.9 
23° C. 
8.6 1.2 
58.9 13.6 
27° C. 
Mannite 
31° C. 
22? C. 
27? C. 
Czapek 
31? C. 
22° C. 
oo 
ao 
24. C. 
0. 
4 
Ao 
Peptone 
31? C. 
24.0 
27.0 
6.5 
7.0 
© 
o0 
23° C. 
15.7 
100.0 
10.0 
100.0 
0.5 10.0 
100.0 100.0 
0| 4.8 
100.0 
25.3 
100.0 
12.8 
100.0 
eo 
- 
% o 
27° C. 
100.0/100.0 100.0/100.0/100.0 
100.0 
100.0 
100.0/1100.0 100.0/100.0/100.0 
100.0 
100.0 
Beet decoction 
31° C. 
100.0:100.0/100.0/100.0/100.0/100.0 
100.0 
100.0/100 
0 
100.0:100.0/100.0/100.0/100.0/100.0 
100.0 
100.0/100 
0 
Mc 
2.4 3.1| 3.8| 5.2) 6.2| 7.0 
7.4 
ed 
8. 
0 
24? C. 
83.4| 85.3 
97.3| 98.4 
88.8 
98.0 
88.5 
1 
20 98.6 
57.4 
5 
98.0 
96.5 
24 — 
14 B. decoc- 
tion 
3.1 6.2 
dii 4.9 
7.2 
24? C. 
29.3| 25.6 
92.41100.0 
.0, 31.0) 30.4 
100.0|100.0) 96.7/100.0 
28. 
4 
96.0 
M — 
24 B.decoc- 
tion 
