310 RYDBERG: PHYTOGEOGRAPHICAL NOTES 
Agrostis vartabilis 
Graphephorum Brandeget 
Danthonta californica 
Danthonia untspicata 
Carex Raynoldsit 
Carex tenutrostris 
Carex simulata 
Carex athrostachya 
Carex Kellogeu 
Lemna gibba (Eur.) 
Juncus Mertensianus 
Iris missouriensis 
Polygonum Watson 
Bistorta bistortoidest 
Claytonia lanceolata 
Crunocallis Chamissonis 
Alsine strictiflora 
Alsine laetat 
Alsine calycantha 
Nymphaea polysepala 
Ranunculus Eschscholtzii 
Campe americanat 
Parnasstia fimbriata 
Micranthes arguta 
Geum oregonense 
Vicia oreganat 
Vicia sparsiflorat 
Epilobium brevistylum 
Epilobium occidentale 
Amarella strictiflora 
Mimulus Langsdorfii © 
Mimulus Lewisut 
Pedicularis bracteosa 
Galium subbiflorum 
_ Aster occidentalis 
Aster Burket 
Erigeron salsuginosus 
Rudbeckia occidentalis 
Senecio triangularts 
Arnica longifolia 
Thalictrum sparsiflorum (Asia) Agoseris elata 
Myosurus aristatus 
Of these, some have spread also to the East, as Crunocallis 
Chamissonis and Galium subbiflorum to Minnesota, Linum 
Lewisii to the Black Hills and Nebraska, Alsine strictiflora to 
Ontario, and Thalictrum sparsiflorum and Alsine laeta to Hudson 
Bay. 
In this category are included plants that grow in open places, 
as dry meadows, table-land, hillsides and cliffs. Many of these 
grow also at lower altitudes; in the foothills and even on the plains. | : 
Many are also common to the mountain chains of the Great — ; 
Basin. 
Cercocarpus ledifolius 
c. Various mesophytes 
Trees or shrubs 
Limnobotrya montigena 
