RYDBERG: PHy APHICAL NOTES 437 
Restricted to the Northern Rockies 
Shrubs 
{tRibes hudsonianum Ribes laxiflorum 
“ petiolare vg glandulosum ' 
Herbs 
Aquilegia columbiana Hedysarum Mackenzit 
9 formosa TtOsmorrhiza Leibergii 
Aragallus foliolosus Pedicularis contorta 
Hedysarum sulphurascens Aster meritus 
4. COPSES AND BORDERS OF WOODS 
Shrubberies in the Southern Rockies are not common outside 
of the willow bogs, and the plants gathered together under this 
heading do not form a distinct formation but a mixture from 
several, especially of those of the aspen groves, the Willow bogs, 
and the meadows. It consists in reality of the zone of strife 
between the last one mentioned and the other two. It is therefore 
not necessary to give a full list of the plants, but only advisable 
to mention the more common ones. 
Copses are more common in the Northern Rockies, especially 
along the subalpine brooks, where Alnus sinuata is the predominant 
species. : . 
Common to the Southern and Northern Réckies 
3 Shrubs 
Salix brachycarpa. Distegia involucrata 
Vaccinium scoparium 2 
Herbs 
Phleum alpinum “ Olneyt 
Calamagrostis canadensis Carex Geyeri 
Langsdorfit “  Rossu 
Deschampsia atropurpurea ‘*  brunnescens 
Elymus glaucus Veratrum speciosum 
Panicularia nervata Vagnera stellata 
sole paucifilora Silene Menziesii 
Poa reflexa - Moehringia macrophylla 
‘*  leptocoma Draba nitida 
