Carl Linnaeus, The Lapland Journey, translated by Peter Graves (Edinburgh: Lockharton Press, 1995), p. 163.

Jokkmokk [2], 27/07/1732, ¶890:

Also ‘Pingvicula minima’ [butterwort] but with withered leaves and with ripe, heart-shaped, toothed fruit with 2 valves and 1 cell8; it was growing among reindeer moss.