78 B 



Canadian Arctic Expedition, 1913-18 



Russia, according to Trautvetter (I.e.), beside at some few stations in arctic Siberia. 



Potentilla multifida L. is very rare in the Alps of Switzerland, but has also 

 been reported from Caucasus, southern Russia, and Siberia. 



With regard to Greenland the table shows that 129 species of the Greenland 

 flora occur also in the region explored by the expedition; of these species 76 are 

 among the circumpolar ones. Common to Greenland and the islands of the 

 arctic American archipelago, but absent from our region are: 



Woodsia ilvensis (L.) R. Br. 

 W. glabella R. Br. 

 Lycopodium annotinum L. 

 Agrostis canina L. 

 A. borealis Hartm. 

 Calamagrostis lapponica 



(Wahlenb.) Hartm. 

 Aira caespitosa L. 

 A. atropurpurea Wahlenb. 

 Catabrosa aquatica (L.) Beauv. 

 Pleuropogon Sabinii R. Br. 

 Poa prafensis L. 

 P, alpina L. 

 P- laza Hnke.? 

 Glyceria Vahliana Liebm. 

 Agropyrum violaceum (Hornem.) 



Lge. 

 Elymus arenarius L. 

 Kobresia caricina Willd. 

 Car ex nardina Fr. 

 C. ursina Dew. 

 C. gynocrates Wormskj. 

 C. lagopina Wahlenb. 

 C. glareosa Wahlenb. 

 C. alpina Sw. 

 C. pedata Wahlenb. 

 C. ustulata Wahlenb. 

 C. capillaris L. 

 Juncus castaneus Sm. 



Luzula parviflora (Ehrh.) Desv. 

 Salix herbacea L. 

 Betula nana L. 

 Koenigia islandica L. 

 Sagina nivalis Fr. 

 Alsine biflora (L.) Wahlenb. 

 Arenaria ciliata L. < 

 Ranunculus glacialis L. (?) 

 Cardamine bellidifolia L. 

 Arabia arenicola (Richards.) 



Gelert. 

 Arabis alpina L. 

 Saxifraga Aizoon Jacq. 

 S. stellaris L. 



Potentilla maculata Pourr. 

 P. tridentata Soland. 

 Pyrola minor L. 

 Phyllodoce caerulea (L.) Gren. et 



Godr. 

 Cassiope hypnoides (L.) Don. 

 Arctostaphylos Uva-ursi (L.) 



Spreng. 

 Diapensia lapponica L. 

 Euphrasia latifolia Pursh. 

 Pedicular is flammea L. 

 Campanula rotundifolia L. 

 Gnaphalium norvegicum Gunn. 

 Artemisia borealis Pall. 

 Taraxacum phymatocarpum Vahl. 



in all, 53 species, 23 of which are Gramineae and Cyperaceae. 



Among these species, which the arctic American archipelago has in com- 

 mon with Greenland, the following occur furthermore in the Hudson bay region; 



Agrostis canina 

 Aira ccespitosa 

 Catabrosa algida 

 Poa alpina 

 Agropyrum violaceum 

 Elymus arenarius 

 Carex gynocrates 

 C. glareosa 

 C. alpina 

 C. ustulata 

 Juncus castaneus 

 Luzula parviflora- 

 Salix herbacea 

 Betula nana 

 Koenigia islandica 

 in all, 30 species. 



Sagina nivalis 

 Cardamine bellidifolia 

 Arabis alpina 

 Saxifraga Aizoon 

 S. stellaris 

 Potentilla maculata 

 P. tridentata 

 Pyrola minor 

 Phyllodoce caerulea 

 Cassiope hypnoides 

 Arctostaphylos Uva-ursi 

 Diapensia lapponica 

 Pedicularis flammea 

 Campanula rotundifolia 

 Artemisia borealis 



