1898 ] GERMINATION OF FUNGUS SPORES 383 
and two failed. In ,*,, two cultures grew somewhat, while seven 
failed utterly. 
The unexpectedly low toxic action of potassium cyanid is 
puzzling, especially as other experimenters? upon spermatophytes 
find its toxic action about one-half that of mercuric chlorid. 
It is evident that the action of this salt upon fungi is not as 
vigorously toxic as upon higher plants and animals. 
TABLE III. 
HYDROCHLORIC ACID. 
Gleeosporium Macrosporium Penicillium Uromyces 
Grew Failed Grew Failed Grew Failed Grew Failed 
n n n n ad 
cen een __. — 2 
3 “Boo 2 6400 een 6400 : 6400 2 3200 800 
hd at 2 n n a 
2 pte eel I 
400 a 400 3 50 - 400 + 800 400 
nn 
I ied I n 2 nm 1 n 2 
200 200 200 4 
n n n 
I 2— 
100 4 I00 og 100 - 100 100 
n 
ve vid 
2 = is2 2 os omar t 
Fe rat ree Re enc acer ote Ea 
* No. 1376. Not quite normal. 
No. 1358. Stunted.—1359. About 1 in 200 grew. 
Hydrochloric and sulfuric acids—These acids have about an 
equal status in the results of the work upon Gloeosporium. 
Starting with a solution of wey the. Spores Rew normally. 
Gradually stronger solutions were taken till growth was evident 
in ;4y with HCl, but H,SO, of this strength weakened the 
growth perceptibly. Glceosporium here became irregular in its 
behavior, and the killing point was not reached. The secondary 
Spores so common in this genus were produced, however, in 
KAHLENBERG and TRUE, On the toxic action of dissolved salts and their elec- 
trolytic dissociation. Bor. Gaz. 22:81. : 
H 
.D. HEALD, On the toxic effect of dilute solutions of acids and salts upon 
plants, Bor. Gaz. 22:125. 
