20 



INTRODUCTION 



Cardamine pratensis, 

 Arabis viridis, 

 Arabis Drummondii, 

 Mitella nuda, 

 Ribes lacustre, 

 Ribes glandulosum, 

 Argentina littoralis, 

 Comarum palustre, 

 Fragaria canadensis, 

 Fragaria terrae-novae, 

 Geum Meyerianum, 

 Rubus pubescens, 

 Rubus pergratus, 

 Rubus Randii, 

 Rubus plicatifolius, 

 Rubus heterophyllus, 

 Rubus nigricans, 

 Rubus setosus, 

 Rosa gemella, 

 Rosa nitida, 

 Sorbus scopulina, 

 Amelanchier Bartramiana, 

 Crataegus Jesupi, 

 Crataegus filipes, 

 Crataegus Pringlei, 

 Lathyrus maritimus, 

 Astragalus carolinianus , 

 Hypericum majus, 

 Viola latiuscula, 

 Viola septentrionalis, 

 Viola Selkirkii, 

 Viola renifolia, 

 Viola incognita, 



Epilobium adenocaulon, 

 Myriophyllum verticillatum, 

 Chamaepericlymenum canadense, 

 Moneses uniflora, 

 Ledum groenlandicum, 

 Rhodora canadensis, 

 Kalmia polifolia, 

 Andromeda canescens, 

 Vaccinium Brittonii, 

 Naumbergia thyrsiflora, 

 Cynoglossum boreale, 

 Lycopus membranaceus, 

 Limosella aquatica, 

 Rhinanthus Crista-galli, 

 Utricularia intermedia, 

 Utricularia minor, 

 Plantago maritima, 

 Galium labradoricum , 

 Lonicera hirsuta, 

 Lonicera canadensis, 

 Adoxa Moschatellina, 

 Campanula rotundifolia, 

 Lobelia Dortmanna, 

 Lobelia Kalmii, 

 Solidago macrophylla, 

 Aster junceus, 

 Aster Faxoni, 

 Aster longifolia, 

 Antennaria canadensis, 

 Bidens Beckii, 

 Petasites palmata, 

 Lactuca Morssii, 

 Flieracium canadense. 



This northern element constitutes 8.32 per cent, of the wild flora. 

 31. Besides all these, there are hundreds more that are to be 

 considered as of northern extraction, but are today found further 

 south than our range. At the encroachment of the ice south- 

 ward, all of these northern species or their progenitors must have 

 been driven, so to speak, south of the edge of the terminal moraine, 



