RYDBERG: Puy APHICAL NOTES 315 
Herbs 
Agrostis foliosa Dodecatheon Jeffreyi 
Calamagrostis Custckti Anthopogon simplex 
Graphephorum muticum Mimulus nasutus 
Tofieldia occidentalis Mimulus primuloides 
Cardamine oligosperma Mimulus Breweri 
Lupinus polyphyllus Polystichum munitum 
Trifolium longipes Isoetes Howellit 
Epilobum oregonense Isoetes Nuttallia 
Eptlobum glaberrimum 
C. Various mesophytes 
These have probably spread along the foothills from the Cas- 
cades to the Selkirks and Bitterroots, or even across the Columbia 
Plains, as most of them are also found in the Submontane or 
Transition Zone. 
Herbs 
Stipa Thurberiana Phoenocaulis cheiranthoides 
Festuca viridula Sedum Douglasit 
Hordeum murinum (Eur.) Heterisia Mertensiana 
Carex concinnoides Dasystephana oregana 
Carex spectabilis Stenotus stenophyllus 
Carex Mertensii Antennaria confinis 
Eriogonum pyrolaefolium Balsamorrhiza deltoidea 
Delphinium depauperatum Arnica Menziesii 
Pulsatilla occidentalis Cheilanthes gractllima 
Arabis suffrutescens Selaginella Wallacei 
2. SPECIES WHICH HAVE CROSSED THE MAIN RANGE OF THE 
ROCKIES IN MONTANA AND ALBERTA 
a. Forest species 
Trees 
Pinus ponderosa A pinus albicaulis 
Shrubs 
Ribes laxiflorum Acer Douglasu 
Rubus pedatus 
