eee errr ——— ee 
PERSONALITY OF PLANTS 
nnn EEE EEE EEE! 
quests and revolutions quite as stirring as any- 
thing in human annals. 
If it is absorbing to follow the racial move- 
ments of man, ancient and modern, it is equally 
fascinating for a lover of plants to investigate 
their migratory habits. We have exact records 
of many of their travels and can make interest- 
ing conjectures about the rest. 
To a layman, the present distribution of 
plants may seem chaotic. He reads that cer- 
tain families are natives of Europe and Aus- 
tralia, or North America and Africa and are 
absent from all intervening countries. The 
Alpine species Primulas and Saaifrages are 
common to both the Arctic and the Antarctic. 
There are fifty-eight European and New 
Zealand species which are identical. The 
British Grass Poa Annua is also found in the 
Andes of Brazil. Through what thousands 
of years of change and evolution have these 
things come about! Yet the results are no more 
complex than was the filling of America with 
its mixed and conglomerate human population. 
In a general way, there is a measure of fixity 
to plant distribution. Certain plants have elec- 
[40] 
