ANNALS OF THE MISSOURI BOTANICAL GARDEN 
| FI nu : 
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I BEGNESEEEEEESPPORRERATA 
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ELLE itii: HEHE HM 
60 70 80 KE 
PER CENT HUMIDITY 
NOIIVNINH359 LN39 Mid 
[Vor. 7 
Fig. 5. Curve showing the percentage of germination of spores of Lenziles saepiaria 
on shavings of the sap-wood of Pinus echinata at various atmospherie humidities 
C. 
and at 25? 
