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



Cardamine pratensis, L. 



C. pratensis, Linnaeus, Sp plant., 1753; Lange, Consp. Fl. Groenl.; Kruuse, 

 List E. Greenl. ; Hart, Bot. Br. Pol. Exp.; Simmons, Prel. Eep. et Bol. Arb.; 

 Hooker, Fl. Bor. Araer. ; Britton & Brown, 111. Fl. ; Kjeixman, in Vegaexp.; 

 Ledebour, Fl. Ross. ; Feilden, Flow. pi. Nov. Zeml. ; Andersson & Hesselman, 

 Spetsb. karlv. 



Fig. Fl. Dan,, T. 1039; Sv. Bot., T. 350. 



In the only place where I found it, this species appeared in a very 

 stunted form. The pairs of leaflets are generally only two, many 

 leaves even have only the terminal leaflet developed. The leaflets, however, 

 are broad, often almost circular, so that Hooker's description of his 

 /S angustifolia which is found in some of the southernmost islands of 

 the Archipelago, does not fit the Ellesmereland form. The plant does 

 not flower in its northernmost stations (cf. also Hart and Kruuse, 1. c.) 

 and becomes more or less a submerse water-plant. In the only place 

 where I found it, it grew in a pool with muddy bottom among Carex 

 aquatilis var. stans, totally under water except for some of the leaves. 

 As entirely reduced to vegetative propagation, it must have great 

 difficulty in spreading. 



Occurrence. Grinnell Land, Discovery Harbour (Hart). Hayes 

 Sound, Skraling Island in Alexandra Fjord (1350). 



Distribution: Greenland, Arctic American Archipelago (only 

 observed in a few of the South-eastern islands, flowering), Arctic and 

 Temperate North America, islands of the "Bering Sea, Arctic and 

 Temperate Asia and Europe, Novaja Semija, Spitsbergen, Faeroes, 

 Iceland. 



Cardamine bellidifolia, L. 



C. helUdifoUa, Linnaeus, Sp. plant-, 1753; Lange, Consp. Fl. Groenl.; Kruuse, List 

 E. Greenl. ; Nathorst, N. W. Gronl. ; Hart, Bot. Br. Pol. Exp. ; Simmons, Prel. 

 Rep. et Bol. Arb.; Hooker, Fl. Bor. Amer. ; Britton & Brown, 111. Fl.; 

 Kjellman, in Vegaexp. ; Ledebour, Fl. Ross. ; Andersson & Hesselman, Spetsb. 

 kfirlv.; Kruuse, Jan May. 



Fig. Sv. Bot., T. 772; Fl. Dan., T. 20. 



Sporadically over the regions visited, rarely in any abundance. It 

 generally grew in somewhat moist, mossy places or also in wet gravel. 

 In contrast to the last species, it would, in general, flower and fruit 

 freely ; I therefore suspect that the plant referred to G. pratensis by 



