282 GEOGRAPHICAL DISTRIBUTION OF PLANTS. 



The Polar families are — 



Ranunculaceaj 



Papaveraceaa 



Cruciferae 



Caryophylleae 



Leguminosse 



Rosaceae 



Onagrariaa 



Saxifrageas 



Compositae 

 Cichoracece 

 Eupatoriacece 

 Senecionidece 



Campanulaceas 



Ericeae 



Poleinoniaceas 



Scropkularineaa 



Polygoneaa 



Salicaceae 



Junceaj 



Cyperacea? 



Gramineae 



Lycopodinea? 



Equistaeea? 



Cryptoganiia 



In addition to the above the following enter the Arctic 

 Circle :— 



Sarracenieas 



Fumariaceaj 



Violarieaa 



Droseracese 



Polygaleae 



Linear 



Balsaminese 



Celastrineae 



Haloragea? 



Ceratophylleas 



Portulacea3 



Crassulaceae 



Grossularieae 



Umbelliferaa 



Araliacea3 



Corneae 



Caprifoliacea? 



Valerianeaa 



Compositas 



Asteroidece 

 Vaccinieas 

 Monotropeae 

 Gentianese 

 Diapensiacea? 

 Hydrophylleas 

 Boragineaa 

 Orobancheaa 

 Labiatae 

 Verbenaceaj 

 Primulacea? 

 Plumbagineae 

 Plantagineaa 



Chenopodieaa 



Eleagneae 



Santalaceae 



Empetreas 



Urticeae 



Betulaceaa 



Coniferae 



Juncagineae 



Aroideae 



Naiades 



Smilacea3 



Melanthaceae 



Asphodelea3 



Orchideas 



Iridese 



Filices 



I made a pretty full collection of lichens and mosses 

 within the arctic circle ; but since so many of them are 

 almost cosmopolites, and a still greater number are common 

 to both the temperate and frigid zones, under similar con- 

 ditions of moisture and exposure, I have avoided swelling 

 the lists with their names. Fungi are not wanting in the 

 northern regions, but the difficulty of preserving them pre- 

 vented me from gathering many. All the families in the 

 above two lists are represented in England, except Dia- 

 pensiacece, which is a Lapland form ; and Sarraceniece and 

 Araliacece which are more purely American. 



Between the arctic circle and the south side of the Wini- 

 peg or Saskatchewan basin on the 50th parallel, embracing 



