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Common Edible Mushrooms

Common Edible Mushrooms

Common Edible Mushrooms

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WHITE SPORE PRINT<br />

flesh is about 1/4 inch thick near the stem, white, firm, and brittle<br />

in fresh specimens but rather soft and limp in old ones. At the<br />

top the stem is 1/4 inch or more in thickness, increasing in diameter<br />

toward the base, and is white and brittle. The spherical base<br />

is buried beneath the surface of the ground; therefore the soft<br />

white volva surrounding it is usually visible only if one digs up<br />

the whole plant. The veil that connects the edge of the young,<br />

unexpanded cap with the stem breaks as the cap expands and<br />

forms a ring on the stem. This ring is at first fairly prominent and<br />

has narrow, parallel, radial furrows on the upper side, but it soon<br />

withers and eventually may disappear completely.<br />

In other words, of the two characteristics usually cited as typical<br />

of the genus Amanita the volva of this species is concealed beneath<br />

the surface of the ground and can easily be missed, and the<br />

ring is evanescent, being visible as a definite ring only in comparatively<br />

fresh young specimens.<br />

Figure 6. Amanita phalloides (Death Cap). Poisonous. Figure 7.<br />

A. verna. Poisonous. The ring has already disappeared<br />

from the one on the left.<br />

29

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