138 Merriam Plants of the Pribilof Islands. 



Diaba incana Linn. 



Tolerably common on St. Paul. 



Cochlearia officinalis Linn. 



Common on St. Paul; in full flower. 



Cerastium alpinum Linn. 



Common on both islands ; in full flower. 



Cerastium arvense Linn. 



Collected on St. Paul Island by Townsend in 1885 and identi- 

 fied by Dr. Vasey. 



Viola langsdorfii Fischer. 



Common on both islands ; at height of flowering about the 

 end of July. 



Silene acaulis Linn. 



Common in small patches, particularly on rocky hillsides ; 

 past prime. 



Lychnis apetala Linn. 

 Common on St. Paul. 



Stellaria crassifolia Ehrh. 



Collected on St. George August 10. 



Stellaria humifusa Rottb. 

 Rather common on St. Paul. 



Stellaria media Smith. 

 Common on St. Paul. 



Arenaria macrocarpa Pursh. 



Abundant on the heather and moss bogs on both islands. 

 Flowers large, white. 



Arenaria peploides oblongifolia Watson. 



Common in moss bogs near Polavina on St. Paul. 



