Thoreau writes in his journal:
That coarse yellowish fungus is very common in the paths in woods of late, for a month, often picked by birds, often decayed, often mashed by the foot like a piece of pumpkin, defiling and yellowing the grass, as if a liquor (or dust) distilled from them. The pines are now two-colored, green and yellow,—the latter just below the ends of the boughs . . .