400 LABRADOR 
bronzed dust, or a short, thick fuzz, cr tomentum, to a felted 
growth of longer hairs (most Hricaceew and Salices, Draba, 
some Potentille, Cerastiuum, Dryas, Papaver, Antennaria, 
and many others. 
7. Development of a tendency to grow a thick rosette 
of leaves at the base (Arabis, Draba, Antennaria, Lychnis, 
Pinguicula, many saxifrages), or to mass themselves in 
close, thick clumps or cushions (Diapensia, Silene, Sedum, 
saxifrages). These tendencies are similar to the one al- 
ready mentioned of crowding the leaves closely together 
on the stem. They may develop in species which in more 
favourable locations grow apart from one another, and 
have their leaves more evenly distributed along the stem. 
8. An occasional tendency, in case of difficulty in absorb- 
ing nutriment from the soil, to develop devices for trapping 
and absorbing insects. Insects are not numerous in Lab- 
rador, with the exception of mosquitoes and flies, but a few 
plants there are partially carnivorous (Drosera, Pinguicula, 
Sarracenia). They appear to be confined almost wholly 
to the marshes of the more southerly part of the country. 
9. While physiological dryness is extremely unfavourable 
to vegetable growth, and necessitates special devices for the 
absorption and conservation of moisture, it is, on the other 
hand, very favourable to the reproductive functions. Ac- 
cordingly, the number of flowers is large, and appears the 
larger on account of the crowding of all varieties into one 
short season, and by contrast with the lack of luxuriance 
in vegetative shoots and foliage. Many of the flowers are 
large and brilliant in colouring, and nowhere is there any 
lack of them in abundance, unless in situations most severely 
open to the winds or destitute of soil. 
