1919] orV7 



MOORE AND KARRER A SUBTERRANEAN ALGAL FLORA <5U7 



ture kept underground for the longest period of time would seem 

 to indicate that the first culture examined was not a normal one. 

 In cultures 2 and 4, the cells may have been overlooked, owing 

 to the difficulty of finding them among the soil particles. 



Since there is now in progress a detailed physiological study of 

 Protoderma which will attempt to determine its possible function 

 in the soil together with the influence of various environmental 

 factors on its life history and growth, no reference to the litera- 

 ture nor further discussion of the problem need be given here. 

 It is hoped that a subsequent paper on the subject may be 

 published in the Annals within a short time. 



