Nov., 1918] Recovery of Vegetation at Kodiak 



33 



at Kodiak was altogether eclipsed by that shown in some areas 

 on the mainland, where many plants survived a much deeper 

 burial for a longer period. For there many plants were found 

 to have recovered after a burial of three years under an ash 

 blanket several feet in thickness.* Definite proof of recovery 

 after such an interval was observed in only one instance at 

 Kodiak, but the manner of reappearance of numerous species 

 strongly suggests that recovery after such prolonged dormant 

 periods was as important a feature at Kodiak as at Katmai. 



A number of the humbler species of plants, which could not 

 penetrate the ash, seemed in 1913 to be practically exterminated. 

 But some of these have reappeared in such a way as to suggest 



Photograph byD. B. Church 

 THE SAME PLOWED FIELD FROM A MOUNTAIN TOP. 



that the old stocks, from which the new shoots have come, lay 

 dormant for two or three years before putting out any new 

 growth. Ruhus pedatus, for example, which formerly carpeted 

 the forest floor was not seen at all in 1913. In 1915 a few plants 

 could be found by search. But in 1916 it was common in 

 many places, growing as vigorously as before the eruption. 

 Of Vitis-Idaea only a single sprig was seen in 1913. In 1915 it 

 was not uncommon, and in 1916 it was abundant. No speci- 

 mens whatever of Drosera were seen around Kodiak until 1916, 

 when a single individual was detected. Riibus chamaemoriis 

 likewise was not seen at all until 1916, but then was fairly 

 common in a number of places, some of which had been repeat- 



* This matter is discussed in detail in a forthcoming paper dealing with the 

 recovery of the mainland plants. 



