What a mass of nutritious food do we occasionally pass in innocence or spurn with our foot upon the old stump or fallen log in the woods!—a neglected feast, indeed, if the specialists on edible fungi are to be believed; a feast, in truth, for a big family, if we chance upon even an average cluster of the "vegetable oyster," which is pictured in [Plate 14].
A "vegetable oyster"
I have commonly observed this species, the Agaricus ostreatus, in the autumn, and this is the season given for its appearance in Europe by the authorities; but according to certain American specialists, notably Charles McIlvaine, it is common in our woods in spring, even as early as March, and through the summer. It is usually found in large clusters, similar to our illustration, growing upon decaying stumps and the trunks of various trees. The "oyster" is a gilled mushroom which grows sidewise from its position, the stem being usually lateral and very short, though occasionally quite prolonged, the two varieties being indicated in the accompanying cut.
AGARICUS OSTREATUS— Variations in Form
The individual mushroom may be five or six inches in breadth, a cluster affording several pounds in weight. The color of the upper surface is light brown or buff, varying to yellowish-ashen, according to age, and the gills are dirty white of various lengths; spores white.
PLATE XIV
THE OYSTER MUSHROOM
Agaricus ostreatus