EDIBLE TUBE MUSHROOM

_Boletus edulis_

[Sidenote: =A famous delicacy=]

The most prominent member of the Boleti is the typical species whose

portrait I have given on Plate 20, "in vain calling himself '_edulis_,'

where there were none to believe him." But in spite of this remark

of Dr. Badham, which had reference especially to his native country,

England, this fungus had long been a favorite article of food among

a large class of the more lowly Europeans, to say nothing of the

luxurious epicures of the continent.

_Boletus edulis_ is to be found singly or in groups, usually in the

woods. Its average diameter is perhaps four or five inches, though

specimens are occasionally found of double these dimensions. A letter

to the writer from a correspondent in the Rocky Mountains describes

specimens measuring fifteen inches in diameter having been found there.

[Sidenote: =Specific characters=]

The cushion-like cap is more or less convex, according to age, of a

soft brownish or drab color somewhat resembling kid, and with velvety

softness to the touch. The under surface or hymenium is thickly beset,

honey-combed with minute vertical pores, which will leave a pretty

account of themselves upon a piece of white paper laid beneath them

and protected from the least draught, a process by which we may always

obtain a deposit of the ochre-tinted spores, as is further described in

a later chapter.

In _Boletus edulis_ this pore surface is white in young specimens,

later yellow, finally becoming bright olive-green; flesh _white_ or

_creamy_, unchangeable on fracture. Stem paler than cap, thick, swollen

at base, often malformed and elongated, especially when from a cluster,

generally more or less covered with vertical raised ridges, which

become somewhat netted together and pinkish as they approach the cap.

The taste is sweet, and in the very young specimen, which is brittle,

quite suggestive of raw chestnut.

[Sidenote: =Insects and decay=]

Any Boletus answering this description may be eaten without fear,

assuming, of course, that its substance is free from any taint

of dissolution and traces of insect contamination. Both of these

conditions are too apt to prevail in the mature specimens, and all

Boleti are more safely employed for food in their young crisp stage,

or at least before their full expansion. In their maturity, moreover,

they often prove too mucilaginous in consistency to be pleasant to the

average partaker, especially the novice.

[Sidenote: =Preparation for table=]

In preparing them for the table, all that is necessary is to cut off

the stems, which are apt to be tough and fibrous, and to wipe the

pellicle of the cap perfectly clean, or, if preferred, to pare the

pileus with a very sharp knife. It is recommended by some that the

entire mass of the pore section be removed. In a mature specimen this

would reduce the bulk of the mushroom by half, and, moreover, deprive

the remainder of the full flavor of the fungus. I have not found it

necessary, and it is certainly needless in a young and tender specimen.

[Illustration: _Boletus scaber_]

_PLATE XXI_

Our Edible Toadstools and Mushrooms and How to Distinguish Them A Selection of Thirty Native Food Varieties Easily Recognizable by their Marked Individualities, with Simple Rules for the Identification of Poisonous Species · 第 76 / 165 题