282 



in ordinary practice it was nevertheless snfticiently liigli to insure killing 

 all spores with which it came in contact. Four lots of seetl were treated, 

 for periods varying from one to four hours in the cold water and from 

 ten to thirty minutes in the hot Avater. The highest germination obtained 

 was from seed which had been soaked four liours in cold water and ten 

 minutes in the hot water. 



SUMMARY. 



A careful consideration of the evidence at hand would seem to indicate 

 that iu themselves smut spores are easily destroyed by either formalin or 

 hot water treatments. 



Owing to the somewhat impervious nature of the seed coats of wheat, 

 and the not improbable fact that spores find lodgment in the interstices 

 of them, it is "difficult to reach and kill all the spores Avith any ordinary 

 method of treatment. 



To render the seed coats of wheat susceptible to such agencies as are 

 commonly employed for the prevention of smut, it appears to be necessary, 

 even impei'ative. that they should be soaked for some time in cold or tepid 

 water prior to treatment. 



A three hours' soaking in cold Avater and a, quarter-hour treatment in 

 an .18 per cent, formalin solution did not materially injiu'e the viability 

 of the seeds. 



Seeds soaked four hours in cold water and then treated ten minutes 

 in water at 120 degre<?s F. gave slightly better germination than the un- 

 treated seeds. 



Some Additions to the Flora of Indiana. 

 William Stuart. ^ 



The accompanying list of floAvering and fungous plants are some which 

 have been collected by the writer during the past tAVO seasons. In the 

 flowering plants, out of a list of five, three are far removed from the 

 range to AA'hich they are accredited. 



In presenting the list it has been tliought desiralile to append a feAV 

 notes imder each species, giving the locality and soil in Avhich they Avere 

 collected, together with such other observations as might be deemed of 

 interest. 



