182 Rydberg : Further Studies on the Potentilleae 



Bull. Torr. Club, 23: 302. 1896; P. qirinquefolia' Rydb. Mem. 

 Dep. Bot. Columbia Univ. 2: 76. 1898. 



When I changed P. nivea pentaphylla Lehm. to P. nivea qidn- 

 quefolia, I did not know that it was identical with Lange's var. 

 subquinata. From his description, especially from the words 

 " eleganter pinnatifidis " I was lead to the supposition that it 

 represented the quinate form of var. Altaica. Consequently I 

 referred Lange's var. subquinata to that variety. As Lange's name 

 is older than my own, it should be adopted. I am well satisfied 

 with the change, as my own as a specific name is a misnomer. The 

 following specimens belong here. 



Greenland : Disco Fjord, 1894, P. Soerensen, 301 ; Akingdlek, 



1890, N. Hartz, 1 ; Kingua Orpiksuit, 2; Atanekerdluk and 



Kuanersuit on Disco, 1871, T/i. Fries; Kingigtok, 1890; N. 



Hartz ; rocks behind Kuanersuit on Disco, 1898, M. Pedersen, 



2718, 2717, 2713, 2715a, 2712; Disco Fjord, 3906; Skansen, 



Disco, 927 ; Kuganguak Valley, 2313 and 4.96 ; Vajat-shore, Un- 

 artuarsuk, 113. 



Spitzbergen: Kap Thorsen, 1896, E. Joergensen. 



1/ 



Potentilla subquinata Pedersenii var. nov. 



Caudex with elongated branches covered by the remains of 

 old leaves ; stems low, less than 1 dm. high, 1-3-flowered, as well 

 as the petioles covered with long white hairs : leaflets small, 1- 

 1.5 cm. long, broadly obovate : white silky on both sides and to- 

 mentose beneath, in age more glabrate above, bractlets very nar- 

 row, linear or linear-lanceolate. 



Greenland: Vaigat Assuk, Disco, 1898, M. Pedersen, 470 



(type) and 1061a. Rocks behind Kuanersuit, 2711, 2714, 2716, 



and 2710 ; Ingigsak, 233 ; Rocks by Mudderbugten, 967 ; Mun- 



garut, 924; all on Disco. 



Potentilla Vahliana Lehm. Mon. Pot. 29 and 172. 1820 



Fine specimens of this species were also in Pedersen's collec- 



tion. 



Greenland : Vajgat, Assuk on Disco, M. Pedersen 1061b. 

 Lyngmarken by Godhaven, 80 ; Rocks behind Kuanersuit on 

 Disco, 2713b ; Roede Elv, Disco, 3441b. 



