306 RYDBERG: PHYTOGEOGRAPHICAL NOTES 
Claytonta virginica Prunella vulgaris (Eur.) 
Ranunculus micranthus Clinopodium vulgare (Eur.) 
Fragaria americana Pedicularis canadensis 
Rubus pubescens Linnaea americana 
Viola Selkirkii Erigeron droebachiensis (Eur.) 
Viola rentfolia Botrychium simplex (Eur.) 
Viola canadensis Botrychium neglectum (Eur.) 
Circaea alpina (Eur.)  - Cryptogramma Stelleri 
Aralia nudicaulis Selaginella selaginoides 
b. Water and bog plants 
Alsine alpestris (Eur.) Epilobium adenocaulon 
Alsine crassifolia Petasites sagittata 
Parnassia parviflora Nabalus racemosa 
Geum rivale (Eur.) Lactuca spicata 
Viola palustris (Eur.) Equisetum pratense (Eur.) 
2. EASTERN PLANTS WITH RIPARIAN OR CAMPESTRIAN DISTRIBUTION 
Muhlenbergia racemosa Sullivantia Hapemanii 
Juncus Vaseyi Vicia trifida 
Carex lanuginosa Vicia americana 
Urtica gracilis — : Apocynum androsaemifolium 
Carex siccata Macrocalyx Nycteleat 
Thalictrum dasycarpum Plantago eriopodat 
Lepidium densiflorumt Rudbeckia hirta 
Vitis riparia, Juncus Torreyi, and Asplenium platyneuron, 
eastern species, have reached the Southern Rockies in Colorado, 
but are not found in the Northern. 
3. PLANTS OF THE GREAT PLAINS 
Some of the plants of the Great Plains extend up into the 
Montane Zone. Although they do not belong to the Canadian or 
Alleghanian Zones of the eastern United States, they are immi- 
grants from the East and may be included here. | 
Calamagrostis micrantha _ Plantago Purshii 
Polygonum buxiforme Laciniaria punctata 
Xanthoxalis Bushti Chrysopsis villos 
Viola pedatifida Solidago glaberrima 
Anogra latifolia Equisetum variegatum 
Anogra coronopifolia 
