1743  (1949)  This posogan when once Light is Very Difficult to put out, if not tak'n in time, and if not put out will Clow and Bur'n tell quite Consum'd to ashes and never Blaze.
1795  (1911)  The Indians, both Northern and Southern, have found by experience, that by boiling the pesogan in water for a considerable time, the texture is so much improved, that when thoroughly dried, some parts of it will be nearly as soft as sponge.
1819  The perogan [sic], or tinder, the Indians make use of, is a kind of fungus that grows on the outside of the birch tree.
1959  The bit of tinder wedged in the board below this bow-drill fire-maker is dried bracket fungus, called "pus-sag-on."