452 RYDBERG: PHY APHICAL NOTES 
Common to Southern and Northern Rockies 
Poa alpina Ranunculus Eschscholizit 
Carex bella Saxtfraga cernua 
“  calciolepis es debilis 
“* atrata Chrysosplenium tetrandum 
Scirpus pauciflorus _ Micranthes arnoglossa 
_ Juncus triglumis Muscaria delicatula 
Juncoides spicatum Androsace subumbellata 
Alsine baicalensts es jiliformis 
“ laeta Condrophylla americana 
Alsinopsis propinqua Pleurogyne foniana 
Sagina saginodes Veronica Wormskjoldu 
Ranunculus alpeophilus 
Restricted to the Southern Rockies 
Alsine polygonoides Condrophylla Fremontit 
Restricted to the Northern Rockies 
tJuncoides arcticum Hemiera ranunculifolia 
2 a i hyperboreum Epilobium saximontanum 
” arcuatum a anagallidifolium 
Netocrene parvifolia Z clavatum 
sabe cad Lyallu Romanzoffia sitchensts 
Brunnonianum “ Leibergit 
5. LAKES, PONDS AND BROOKS | 
The purely aquatic flora is not well represented in the Subalpine Cc 
Zone. It contains practically the same species as are in the Alpine a 
Zone with few additions from the Montane Zone.* The following — 
species belong to this formation: 
Common to the Southern and Northern Rockies 
Sparganum minimum Utricularia vulgaris 
3 angustifolium “6 minor 
Potamogeton alpinus Nymphaea polysepala 
Catabrosa aquatica . Hippuris vulgaris 
Carex aquatilis — Lemna gibba 
Veronica americana ‘-_ minor 
* Compare discussion in Bull. Torrey Club 41: 473, 4743 43: 630. 
