The vascular flora of raised bogs in southeastern Labrador and its phytogeographic significance.

The vascular flora of raised bogs in SE Labrador is composed of only 26 species, which may be grouped into wide-ranging arctic-boreal species, boreal species reaching their NE range limits in the forest-tundra transition, and boreal species reaching their range limits along the shores of Lake Melville. The striking impoverishment of the Labrador bog flora is apparently the result of the colder more continental climate of Labrador, which excludes from the regional bog flora the less hardy species of southern affinities.-from Authors