442 SKETCH OF THE FLORA OF ALASKA. 



concerning the migrations of plants. The well known tendency of Arctic plants 

 to vary almost indefinitely makes the subject important to the botanists inter- 

 ested in settling that vexed question, what is a species and what its formula. 



EANUNCULACEJ3. 



Thalictrnm alpinura, L., Kotzebne sound, and Port Clarence. 



Anemone alpina, L., Kotzebuo sound. 



A. patens, L. ; Fort Youkon, Antoine Houle. 



A. parviflora, Miciix., Kotzebuo sound. 



A. Richardsoni, Hook., Island of Ounalashka, Kotzebuo sound; Youkon river, 

 Dall. 



A. narcissiflora, L., is the A. multifida of Hooker and Amott in Bot. Beechey; 

 fide Seemann in Bot. Herald, from Kotzebue pound to Cape Lisburne, and 

 between Point Barrow and Mackenzie river; island of Ounalashka. 



Hepatiea triloba, Chaix, Sitka. 



Ranunculus Pallasii, Schlecht., Kotzebue sound. 



R. hyperbovcus, Rottb., Norton sound to Wainwright inlet. 



R. Purshii, Richards., Kotzebuo sound. 



R. Laj)ponicus, L., Kotzebuo sound. 



R. pygmaeus, Wahl., Kotzebuo sound. 



R. nivalis, R. Br., Kotzebuo sound. 



R. Eschscholtzii, Schlecht., Kotzebuo sound to Cape Lisburne. 



R. occidentalis, Nutt., (R. recurvatus, Bongard in Vegetation of Sitka, but 

 not of Poir.,) Sitka. 



Caltha palustris, L., var. asarifolia, Ounalashka. 



C. leptosepala, DC, Sitka. 



(Still a third species, C. arctica, R. Bi\, may yet be added, as it has been found 

 on Richard's island, in the mouth of the Mackenzie river.) 



Coptis infolia, Sahsb., Sitka. 



C. aspleni folia, Salisb., Sitka. 



Aquilegia formosa, Fisch., A. Canadensis, Bong. 1. c, Sitka. 



Delphinium Menziesii, DC., Kotzebue sound to Cape Lisbunie. 



Aconitum Napellus, L., var. delphinifolium, Sitka, Kotzebue sound, Chamisso 

 island, Norton sound, and between Point Barrow and Mackenzie river. 



ISTMPH^CE^. 



Nuphar luteum. Smith, Sitka. 



PAPAVERACEiE. 



Papaver alpinum, L. ; P. nudicaule, Norton sound, H. M. Bannister; Kotzebue 

 sound, and from Point IBaiTow to Mackenzie river. 



EUMAEIACE^ 



Corydalis pauciflora, Pers., Norton sound, H. M. Bannister, Island of St. 

 Lawrence, Bot. Herald. 



C. glauca, Pursh., Point Barrow to Mackenzie river, Captain Pullen. 



CRUCIFER^. 



Barbarea vulgaris, R. Br., Sitka and Norton sound. 

 Arabis hirsuta, Scop., Sitka and Ounalashka. 

 A. ambigua, DC., Sitka and Ounalashka. 



Nasturtium palustre, DC, Eschscholtz bay, Ounalashka; and Youkon river, 

 Dall. 



