134 Merriam — Plants of the Prthilof Islands. 



be anything like complete, since I was on the islands altogether 

 only two weeks and botanizing was incidental to more urgent 

 duties ; moreover, only limited parts of the islands were trav- 

 ersed, and the date (end of Juh" and early August) was so late 

 that many plants were past flowering. On several rambles I 

 had the good fortune to be accomj^anied by INIr. James M. 

 Macoun, of the Geological and Natural Histor}- Survey of Can- 

 ada, who will doubtless supplement my list by many additional 

 records, particularly from 8t. George Island, where my oppor- 

 tunities for collecting were reduced to a minimum. No collect- 

 ing was done on Walrus or Otter Islands. 



'■o 



Acknowledgments for the Determination of Species. 



The majority of the flowering plants were identified l)y me on 

 the islands. The entire collection on its arrival in Washington 

 was examined by Dr. George Vasey, Botanist of the United States 

 Department of Agriculture, and was turned over by him to Mr. 

 J. N. Rose, Assistant Botanist, for critical study. IMr. Rose has 

 gone over the collection, verif3'ing and supplementing ni}^ 

 determinations, and has contributed critical notes on four species, 

 which are inserted in brackets over his initials. Special groups 

 have been submitted to specialists for determination as follows : 

 The loiUoivs have been identified by Dr. M. S. Bel)b ; the grasses 

 by Dr. George Vasey; the Carices by Prof. L. H. Bailey; the 

 Juncacex by Mr. F. V. Coville ; the mosses except the Sphagnums 

 by Mrs. E. G. Britton, Mr. John M. Holzinger, and Dr. V. F. 

 Brotherus, of Helsingfors, Finland ; the Sphagnums by Dr. C. 

 A\"arnstorf, of Neuruppin, German}' ; and the Hepalkx by Prof. 

 L. M. Underwood. Six species of mosses collected on St. Paul 

 Island by j\Ir. jNIacoun during our visit have been described as 

 new bv Dr. H. C. Kindberg.* 



Brief Description of the Pribilof Islands with Special 

 Reference to their Vegetation. 



The Prilnlof group in Bering Sea is about 350 kilometers (220 

 miles) north of tlie Aleutian Chain, and comprises the islands 

 St. I'aul and St. George, separated by about 642 kilometers (40 

 miles) of sea, and two islets known as Walrus and Otter Islands, 



* Ottawa Naturalist, vol. v, p. 179; separates issued January 12, 1892. 



