Note: The common European species ({R. tarandus}) is
domesticated in Lapland. The woodland reindeer or
caribou ({R. caribou}) is found in Canada and Maine
(see {Caribou}.) The Barren Ground reindeer or caribou
({R. Gr[oe]nlandicus}), of smaller size, is found on
the shores of the Arctic Ocean, in both hemispheries.
{Reindeer moss} (Bot.), a gray branching lichen ({Cladonia
rangiferina}) which forms extensive patches on the ground
in arctic and even in north temperature regions. It is the
principal food of the Lapland reindeer in winter.
{Reindeer period} (Geol.), a name sometimes given to a part
of the Paleolithic era when the reindeer was common over
Central Europe.