1921] 
WEBB—GERMINATION OF SPORES OF CERTAIN FUNGI 335 
germination. Slight changes are evidenced in the Czapek 
solutions, the more acid cultures shifting slightly towards neutral- 
ity. In “water HCl or KOH” all of the cultures possessing a 
Mannite | 
$ Mannite 
&| apek 
Pepfone. 
hirfer (4 Po -—— | || 
Mannite 
Crapek 
ne 
Wafer(HcI-KkaH) 
Wafer ^, Po 
Mannite 
Czapek 
imi 
and secondary maximum (banded) 
reaction favorable for germination exhibit some shift towards 
neutrality or towards slight alkalinity. 
A temperature range of 4—5? C. on either side of a provisional 
optimum does not materially influence the germination of 
fungous spores as related to H-ion concentration. Of course, 
