414 LABRADOR 
“Its spongy, water-absorbing cushions,” which “ keep even 
the highest parts of the moor permanently saturated with 
water... . gradually grow in height, while the lower parts 
pass over into sphagnum peat”’ (Schimper). The following 
list of other plants growing in moors is that given by 
Schimper, with those of known occurrence in Labrador 
italicized. Some are characteristic of high-moor: Viola 
palustris, Vaccinium oxycoccus, Andromeda polifolia, Be- 
tula nana. Others are preéminently meadow-moor species: 
Epilobium palustre, E. tetragonum, Senecio aquaticus, 
S. paludosus, Gentiana pneumonanthe, several species 
of Carex. Many others that are essentially moor plants 
occur also in dry stations without peat: Vaccinium 
Vitis-Idea; or on meadow moors: Drosera rotundifolia, 
Comarum palustre, Pedicularis palustris, Salix repens, 
species of Hriophorum, many species of Carex. Many 
moor plants compensate for their disadvantages by be- 
coming carnivorous: Drosera, Pinguicula vulgaris, Sar- 
racenia purpurea. 
(d) By far the most favourable and fertile situations in 
the whole country are the sunny slopes, exposed to the 
south, which are abundantly fed by water from melting 
snow-drifts, on which the water, not becoming stagnant, 
has no opportunity to accumulate humous acids. Schimper 
describes them thus: — 
“The physiological analogues in the tundras of the desert 
oasis are Heat-oases —sunny slopes protected from the 
drying winds — upon which the sunbeams fall almost per- 
pendicularly, and thus warm the water in the soil so that 
plants can obtain it in actual abundance. Such stations 
frequently resemble the flower-beds of a garden. Accord- 
ing to Nathorst : — 
