1898-1902. No. 2.] VASCULAR PLANTS OF ELLESMERELAND. 93 



Occurrence. Grinnell Land, Muskox Bay (?). Hayes Sound 

 region: Twin Glacier Valley (4182); Fram Harbour, abundantly and 

 flourisbing at the "green patch" (657, 1090); Bedford Pirn Island (1312, 

 4195). South coast: Fram Fjord (4201); Harbour Fjord, valley on Sir 

 Inglis Peak (2162), Seagull Rock (2584), "green patch" at the ancho- 

 rage; Goose Fjord, Wolf Valley (3959), Falcon Cliff (2872). 



Distribution: East and West Greenland, Arctic America (not 

 noted in the Archipelago), Labrador, Rocky Mountains to Colorado, 

 Alaska, Land of the Chukches, Western Arctic Siberia, Arctic Russia, 

 Novaja Senilja, Spitsbergen, Jan Mayen, Scandinavian mountains, Iceland. 



Draba hirta, L. 



D. hirta, Linnaeus, Syst. Nat, Ed. 10, 1759; Gelert, Not. Arct. PI.; Lange, Consp. 

 Fl. Groenl. ; Kruuse, List E. Greenl. ; Hart, Bot. Br. Pol. Exp.; Greely, Rep.; 

 Simmons, Pre!. Rep. et Bot. Arb. ; Hooker, FJ. Bor. Amer. ; Kjellman, in 

 Vegaexp. ; Ledebour, Fl. Ross.; Nathorst, Spetsb. karlv. ; Kruuse, Jan May.; 

 D. rupestris, R. Brown, in Aiton, Hort. Kew., Ed. 2; Lange, 1. c, Hart, 1. c, 

 ex p.; Hooker, 1. c; Ledebour, 1. c. 



Fig. Sv. Bot, T. 768, Fl. Dan. 2421, 2422; Gelert, 1. c, fig. 15, 16. 



I have not thought it necessary to enumerate all the many syno- 

 nyms of this plant, as they are sufficiently treated of by Gelert, 1. c. 

 Especially, I can fully agree with him that the D. rupestris of Robert 

 Brown is nothing more than a small form of this species, but in two 

 other instances I must dissent from him. As previously mentioned, the 

 D. rupestris var. altaica of C. A. Meyer is really a form of D. hirta 

 and does not belong to D. fladnizensis, but on the other hand D. arc- 



r>^c^ 



-7/ "^ 

 Fig. 5. Stellate hairs from the leaves of Draba hirta. 



tica, Vahl cannot be separated from D. hirta, but must be placed as 

 a variety of that species, into the long-hairy main form of which it 

 merges through a complete series of intermediate forms. 



Var. arctica, (J. Vahl) Watson. 



D. arctica, J. Vahl, Fl. Dan.; Gelert, 1. c. ; Lange, 1. c; Kruuse, I. c; Nathorst, 

 N. W. Gronl.; Kjellman, Sibir. nordk. fan. fl. ; Nathorst, Nya bidr. ; D. 

 hirta, var. arctica, Watson, Contr. Amer. Bot. 



Fig. Fl. Dan., T. 2294, Gelert, 1. c, fig. 17. 



I must fully agree with Watson's arrangement as to this plant. 



The species of Vahl is principally founded on two characteristics, viz., 



