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



favorable year 1900, it was first seen on July 31st. But the flowering 

 is very soon ended and the fruit seems to mature regularly. 



Occurrence. Grinnell Land, Discovery Harbour, Hart (sub P. 

 niveal). Totally lacking in the Hayes Sound district as well as in the 

 eastern part of the south coast, but common and abundant in the in- 

 terior of the Goose Fjord, for instance: Ptarmigan Gorge (3333, 3392), 

 Gallows Point (3000), Midday Knoll (3650), Wolf Valley. 



Distribution: West Greenland (northern part), Arctic American 

 Archipelago, Arctic America, Hudson Bay region. Rocky Mountains. 



Potentilla emarginata, Pursh. 



p. emarginata, Pursh, F1. Amer. sept., 1814; Lehmann, Mon. Potent., et Revis. 

 Potent.; Rydberg, Mon. Amer. Potent., et Furth. Stud. Potent.; Lange, Consp. 

 Fl. Groenl. ; Kruuse, List E. Greenl. ; Hooker, F1. Bor. Amer. ; Britton & 

 Brown, III. Fl. : non P. emarginata, Desf. ; P. nana, Willdenow, in Schlech- 

 TENDAL, Uebers. Willd. Potent.; Lehmann, 11. cc; Rydherg, Mon. Amer. Potent. ; 

 Hooker, 1. c. ; Britton & Brown, 1. c. ; Ledebour, Fl. Ross. ; P. fragiformis 

 var. parviflora, Trautvetter, Consp. Fl. Nov. Semi.; Kjellman, in Vegaexp. ; 

 KjELLMAN & LundstrBm, Fan. Nov. Semi.; Andersson & Hesselman, Spetsb. 

 karlv. ; Nathorst, N. W. Gronland; P. fragiformis, Rydberg, Mon. Amer. 

 Potent-, non (Willd.) Schlecht. ; P. grandiflora var. parviflora, Tbadtvetter, 

 PI. Sib. bor., et Fl. rip. Kolym. ; P. frigida, Haht, Bot. Br. Pol. Exp., non 

 ViLLARs; (p. maculata, Greely, Rep. (?), non Pourret). 



Fig. Lehmann, Mon. Potent., T. 17; Fl. Dan., T. 2291 ; Rydeebg, Mon. Amer. 

 Potent., T. 32, fig. 1—5. 



Pursh has described (1. c, I, p. 353) P. emarginata in such a 

 manner, that one can be tolerably certain which form he meant. Later 

 his description has been made more precise by other authors, such as 

 Lehmann and Rydberg, who have also given figures. I am indeed in 

 no doubt about my plant being identical with that of Kohlmeister, col- 

 lected in Labrador, on which Pursh founded his species, but still 

 it remains to be seen if there are no objections to the name. It is a 

 fact that it is used already 1804 for quite another plant by Desfon- 

 TAiNES (Tableau de I'Ecole de Botanique, p. 177), but without a descrip- 

 tion. The name of Desfontaines seems never to have been used, and 

 Pursh was at liberty to avail himself of the same specific name (cf. 

 also Lehmann, Mon. Potent., p. 175). 



Previously, however, Willdenow had, in his herbarium, distin- 

 guished the plant in question as P. nana, and Schlechtendal kept this 

 name when, in Gesellschaft naturforschender Freunde zu Berlin, he gave 

 an account of some Potentillae in the herbarium Willdenow. The 

 above-quoted paper of Schlechtendal is pubhshed in volume 7 of Mag. 



