RYDBERG: PHYTOGEOGRAPHICAL NOTES 345 
distribution when considering the resemblances of and distinctions 
between the Hudsonian flora and the subalpine flora of the Rockies. 
Looking over the following two lists we find that they are mostly 
made up of either aquatic plants and hydrophytes or plants from 
dense or open woods or copses, requiring a good deal of moisture. 
Trees 
Populus tremuloides 
Shrubs 
Vaccinium caespitosum 
Linnaea americana 
Distegia involucrata 
Salix chlorophylla 
Betula glandulosa 
Lepargyrea canadensis 
Herbs 
Avena striata 
Spar gamitien minimum - 
Danthonia intermedia 
angustifolium 
P > ak ad natans Trisetum subspicatum 
alpinus Phragmites Phragmites 
4 heterophyllus +Catabrosa aquatica 
: Richardsonii Bromus ciliatus 
- pectinatus Poa pratensis 
we filiformis + “ alpina 
Triglochin palustris *  crocata 
: maritima | Festuca curtifolia 
Scheuchzeria palustris Panicularia nervata 
Savastana odorata Hordeum eas 
Muhlenbergia racemosa Agropyron violaceu 
apleum pratense 
Eriophorum resholion 
alpinum osha Hepburnit 
Alopecurus aristulatus leptalea 
occidentalis + ‘ obtusata 
Agrostis hiemalis + ‘  gynocrates 
“ canina ‘«  siccata 
Calamagrostis Langsdorfit “ gntertor 
canadensis canescens 
2 purpurascens “  brunnescens 
_ Deschampsia caespitosa “© Rossit 
“*  qurea 
atropurpurea 
. 
