Carl Linnaeus, The Lapland Journey, translated by Peter Graves (Edinburgh: Lockharton Press, 1995), p. 158.
Jokkmokk [2], 24/07/1732, ¶859:
In winter, when the reindeer cannot get at ‘coralloides’ [reindeer mosses] on the ground, they chop down trees so that they can eat their fill of ‘Usnea’ [beard mosses], though that scarcely suffices. The reindeer of the Forest Lapps have a very troubled time during the dog days when they have no snow in which to keep themselves cool; that is why Mountain Lapps are richer.