THE FLORA OF CANSO, NOVA SCOTIA 



61 



SESSIONAL PAPER No. 22a * 



the whole area subject to cultivation. As a consequence, no importation of foreign 

 grains with their accompanying weeds takes place. The lack of railway communica- 

 tion also prevents the introduction of the many species of weeds which travel by 

 train, and accounts in a large measure for the fact that so few foreign plants have 

 reached the locality. 



3. The domestic animals enjoy the liberty of the streets and wander over the 

 uncultivated lands at will, appropriating every vegetable product suited to their 

 taste. The species of plants fitted for their food are consequently subjected to a 

 severe struggle for existence, and only a few are successful in finding defensive 

 retreats among the rocks, thus securing a precarious tenure of life. 



4. The most important ecological factors are the chill sea breezes and the Atlantic 

 fogs. These prevent the growth of many species of plants found in other parts of 

 the province where the average temperature and the amount of sunshine during the 

 summer months are much greater. The ice floes, brought down by the current from 

 the north in spring, lower the temperature of the sea waters and of the atmosphere 

 above them, whilst the heated plains and fields of the interior attract the cool breezes 

 to fill the vacancy produced by the ascending aerial currents. The situation of Canso 

 exposes it to the full influences of the winds from the Atlantic, and renders it a 

 pleasant retreat for those who flee from the heated towns of the interior or of the 

 south. 



i 



LIST OF PLANTS COLLECTED AT CANSO, NOVA SCOTIA, JUNE 29 TO 



AUGUST 24, 1901. 



By Prof. James Fowler. 

 Note. — The nomenclature is that of Brown and Britten, Illustrated Flora. 



I. Ranunculacece. 



1. Coptis trifolia (L.) Salisb. 



2. Oxygraphis Cymbalaria, Prantl. 



3. Ranunculus acris, L. 



4. Ranunculus repens, L. 



5. Thalictrum polygamum, Muhl. 



II. Nymphaeacece. 



6. Castalia odorata, Woodv. 



7. Nymphsea advena, Soland. 



III. Sarraceniaceoe. 



8. Sarracenia purpurea, L. 



lY. Cruciferce. 



9. Brassica arvensis (L.), B.S.P. 



10. Bursa Bursa-pastoris, Britton. 



11. Cakile edentula (Bigel.), Hook. 



V. Violacece. 



12. Viola blanda, Willd. 



