96 RYDBERG: PHYTOGEOGRAPHICAL NOTES 
AMERICAN 
Alsinopsis quadrivalis 
Alsinopsis Rossu 
Anemone zephyra 
Ranunculus affinis 
Smelowskia americana 
Rhodiola integrifolia 
Leptasea austromoniana 
*Potentilla quinquefolia 
Potentilla nipharga 
Vaccinium oreophilum 
Androsace carinata 
Androsace albertina 
*Swertia palustris 
Amarella monantha 
Amarella plebeia 
Dasystephana Romanzovii 
Condrophylla americana 
Polemonium pulcherrinum 
Erigeron simplex 
Erigeron melanocephalus 
Artemisia saxicola 
Artemisia spithamaea 
EUROPEAN 
A. narcissiflora 
TR. rosea 
P. nivea 
P. nivea 
V. Myrtillus 
ASIATIC 
A. narcisstflora 
R. pedatifidus 
S. calycina 
L. bronchialis 
P. nivea 
P, nivea 
A. Chamaejasme A. Chamaejasme 
A. Chamaejasme A. Chamaejasme 
S. perennis 
A. tenella 
A. Amarella 
D. Froelichii 
C. prostrata 
E. uniflorus 
E. uniflorus 
A, norvegica 
S. perennis 
A. tenella 
A. Amarella 
D. frigida 
C. prostrata 
P. humile 
E. uniflorus 
E. uniflorus 
\ 
A. borealis 
Many of the endemic American glacial plants—or rather 
alpine-arctic plants, for most of them undoubtedly originated 
after the glacial period—are evidently derived from existing 
circumpolar glacial plants. Such are: 
CIRCUMPOLAR GLACIAL 
D. caespitosa 
AMERICAN GLACIAL 
Deschampsia curtifolia 
Poa arctica P. cenisia 
* Festuca saximontana F, ovina 
Agropyron biflorum A. caninum 
Cerastium Behringianum C. alpinum 
Draba andina D. glacialis 
Draba oligosperma D. glacialis 
Some of these arctic-alpine plants had probably the same 
