64 H. G. SIMMONS. [sec. arct. exp. fram 



Distribution: Northeast and Northwest Greenland, Arctic Ameiican 

 Archipelago, Arctic America, Rocky Mountains, Land ol the Chukches, 

 Arctic Siberia, Altai and other mountains down to Tibet, Caucasus, 

 Arctic Russia, Novaja Semlja, Spitsbergen. 



Saxifraga aizoides, L. 



S. aisoides, Linnaeus, Sp. plant., 1753; Sternberg, Revis. Saxifr. ; Exgler, Mon. 

 Saxifr. ; Lange, Consp. Fl. Groenl. ; Kruuse, List E, Greenl. ; Meehan, Contr. 

 Greenl. ; Simmons, Prel. Rep. et Bot. Arb. ; Hooker, FJ. Bor. Amer. ; Britton 

 ct Brown, III. PL; Andersson & Hesselmax, Spetsb. kiirlv. 

 Fig. Fl. Dan., T. 72. 



The Ellesmereland form has entirely glabrous leaves, or, excep- 

 tionally they are feebly ciliate. The flowers are purely yellow. 



In its only locality, the plant grew in wet clay or gravel on rock 

 ledges, and flowered abundantly when first found, August 3rd, 1900. 



Occurrence. South coast, slopes at the Lake Valley (2525), and 

 from there to the "green patch" (2565, 3993) at the anchorage in Har- 

 bour Fjord. 



Distribution: North-eastern Greenland, West Greenland, Arctic 

 American Archipelago, Arctic America, Labrador, New Foundland, Anti- 

 costi, down to Vermont, New York, and Michigan, Rocky Mountains 

 (absent in Asia?), Ural, Arctic Russia, Spitsbergen, Northern Finland 

 and Scandinavia, Mountains of Central Europe and of Great Britain, 

 Iceland. 



Saxifraga Hirculus, L. 



S. Hirciilns, Linnaeus, Sp. plant., 1753; Sternberg, Revis. Saxifr.; Engler, Mon. 

 Saxifr. ; Kruuse, List E. Greenl. ; Simmons, Prel. Rep. et Bot. Arb. ; Hooker, 

 Fl. Bor. Amer.; Britton & Brown, 111. Fl. ; Brown, Clilor. Melv. ; Macoun, PI. 

 Pribilof; Kiellman, in Vegaexp. ; Ledebour, Fl.'Ross. ; Andersson &: Hesselman, 

 Spetsb. karlv. ; Gronlund, Isl. Fl.; S. Hire. var. alpina, Lange, Consp. Fl. 

 Groenl. (non Engler, 1. c.?); S. Hire, fitiniflora, Sternberg, I.e.; S. propiiiqua, 

 Brown, List of pi., ex Chlor. Melv. 



Fig. Sv. Bot., T. 625; Fl. Dan., T. 200. 



The Ellesmereland form of this plant entirely resembles that from 

 East Greenland, which Lange has identified with the var. alpina of 

 Engler, whose description (I. c, p. 124) runs as follows: "Caulis hu- 

 milis. Folia basalia numerosa, spathulata atque cauhna oblonga, mar- 

 gine ciliata. Sepala fere ovata. Petala obovato oblonga". Lange, how- 

 ever, has altered the discription to: "Humilis (2 — 3" longa) condensata 

 et caespitosa, folia latiora quam in forma typica (Fl. Dan. tab. 200!), 



