DR. HOOKER ON THE DISTRIBUTION OF ARCTIC PLANTS. 



257 



Eriophorum capitatum. 



polystachyum. 



Alopecurus alpinus. 



Deyeuxia Lapponica. 



Deschampsia ceespitosa (East Greenland only). 



Phippsia algida. 



Colpodium latifolium. 

 Poa flexuosa. 



pratensis. 



nemoralis. 



Festuca ovina. 



Of the above, Saxifraga oppositifolia is probably the most ubiquitous, and may be con- 

 sidered the commonest and most arctic flowering plant. 



The following are also inhabitants of all the five arctic areas, but do not usually attain 

 such high latitudes as the foregoing : — 



Ranunculus Lapponicus. PolemoniumcaeruleuTn,and vars. (EastGreen- 



Draba rupestris. land only.) 



Viola palustris. Pedicularis Lapponica. 



Honkeneya peploides. Armeria vulgaris. 



Epilobium angustifolium. Betula nana. 



alpinum. Salix lanata. 



Hippuris vulgaris, glauca. 



Artemisia borealis, ' alpestris. 



"Vaccinium uliginosum. Luzula campestris. 



Vitis-idsea. Carex vesicaria. 



Ledum palustre. Eriophorum vaginatum. 



Pyrola rotundifolia. Atropis maritima. 



The absence of Gentiana and Primula in these lists is very unaccountable, seeing how 

 abundant and very alpine they are on the Alps and Himalaya, and Gentiana on the South 

 American Cordilleras also. 



The few remaining plants, which are all very northern, and almost or wholly confined 

 to the arctic zone, are the following, f indicates those species absolutely peculiar ; ft the 

 only peculiar genus. 



Ranunculus Pallasii. 



hyperboreus. 



Trollius Asiaticus. 



Corydalis glauca. 



Cardamine purpurea. 



Turritis mollis. 



Cochlearia sisymbrioides. 



Hesperis Pallasii. 

 fBraya pilosa. 



Eutrema Edwardsii. 



Parrya arctica. 

 t arenicola. 



Odontarrhena Fischeriana. 



Sagina nivalis. 



Stellaria dicranoides. 



Oxytropis nigrescens. 



Sieversia Rossii. 



Sieversia glacialis. 



Rubus arcticus. 



Parnassia Kotzebuei. 



Saxifraga Eschscholtzii. 



serpyllifolia. 



t Richardsoni. 



Ccenolophium Fischeri. 

 tNardosmia glacialis. 



Artemisia Richardsoniana. 



glomerata. 



t androsacea. 



Erigeron compositus. 



Chrysanthemum arcticum. 



Pyrethrum bipinnatum. 



tSaussurea subsinuata. 



Campanula uniflora. 



Gentiana arctophila. 



