(1.) A scurfy or warty top, the protuberances of which rub easily off, leaving the skin intact. In a number of specimens many will be found entirely smooth, while near them are others of the same variety where more or less of the specks remain.
(2.) A ring; generally large and reflexed or falling downward.
(3.) A volva; more or less enclosing the young plant, and remaining at the base of the older specimen, so that when the mushroom is pulled up a socket is left in the ground.
These three marks should all exist in the typical plant of this family, and the experienced eye will see signs of their presence, even where they are wanting. But the volva rarely or never decays during the life of the specimen, and to reject everything with this mark is recommended to all amateurs.
So far as known, there are no cases of death by the use of mushrooms except from this one family. In all well-defined cases of fatal poisoning, the cause is just as well defined, namely, the use of the mushroom represented by Plates [IX.] and [X.] in this sheet. Therefore, when one has become perfectly acquainted with this family, and learned to always reject them, he has very little to fear in the choice of mushrooms for the table. The poisonous varieties of the Amanita family are extremely common.
The antidote for this poison is found in the skilful use of the alkaloids from the family of the Solanaceæ or Nightshades, especially in subcutaneous injections of Atropine. But to the public generally, in cases of poisoning, no other advice can be given than to call a physician without delay.
[Plate VI.] represents several members of the Russula family. Having once learned to identify it without danger of error, this family is quite safe for use as food; for all the non-esculent Russulas are hot or nauseous to the taste, while the edible ones are very nutty and pleasant. The student should, therefore, taste each specimen when preparing them for cooking.
Some authorities consider all Boleti fit for table use, but there are those which are too bitter for food, and one such as the specimen numbered [1, Plate XI.], would spoil a whole stew. The tubes of this Boletus (felleus) are light rose, although they appear to be white when fresh and young. A good rule for amateurs is to avoid all the lurid Boleti; by this is meant all those that have the slightest shade of red to the tubes, although I have often eaten of such. The mild-colored members of this family, having white, yellow, or greenish tubes, if pleasant to the taste, may be considered safe eating.
[Plate VIII.] represents some of the esculent puff-balls. There are some warty fungi growing on wood, which, in early growth, resemble puff-balls, whose qualities are not yet known. But all those varieties of clear white fungi, which appear in little balls on the open ground after rains, may be eaten with perfect safety, if fresh, white inside, and hard; if soft and yellowish, or black in the pulp, they should be avoided, as they are approaching decay.
The most important advice to the student is to learn to recognize the Amanita family, and to avoid them all; next, to define and recognize any mushroom he is using for food, so that he could pick a single specimen of the same out of a basketful of assorted fungi; and finally, never to pick mushrooms at random for food, unless he has tested by actual use each and all of the varieties so used. There is a large family of mushrooms resembling the Russulas, which exude a milky juice if broken or cut. The amateur will do well to avoid all such, although they are esculent where the milk is mild to the taste. Additional plates, displaying other varieties of esculent mushrooms, may possibly be issued in the future.