edulis, Boletus edulis, va.
clavipes, and a number of others. My wife has very successfully canned a
number of species, notably Lycoperdon pyriforme, Pleurotus ostreatus and
Tricholoma personatum. The mushrooms were carefully picked over and
washed, let stand in salt water for about five minutes, in order to free
them of any insect-life which may be in the gills, then drained, cut
into pieces small enough to go into the jars easily. Each jar was packed
as full as possible with mushrooms and filled up with water salt enough
to flavor the mushroom properly. Then put into a kettle of cold water on
the stove, the lids being loosely placed on the top, and allowed to cook
for an hour or more after the water in the kettle begins to boil. The
tops were then fastened on securely and after trying the jars to see if
there was any leak, they were set away in a cool, dark place.

In canning puff-balls they should be carefully washed and sliced, being
sure that they are perfectly white all through. They do not need to
stand in salt water before packing in the jar as do those mushrooms
which have gills. Otherwise they were canned as the Tricholoma and
oyster mushroom. Any edible mushroom can easily be kept for winter use
by canning. Use glass jars with glass tops.

TERMS USED

=SOME OF THE MOST COMMON TERMS USED.= In describing mushrooms it is
necessary to use certain terms, and it will be incumbent upon anyone who
wishes to become familiar with this part of botanical work to understand
thoroughly the terms used in describing the plants.

The substance of all mushrooms is either fleshy, membranaceous, or
corky. The _pileus_ or _cap_ is the expanded part, which may be either
sessile or supported by a stem. The pileus is not made up of cellular
tissue as in flowering plants, but of myriads of interwoven threads or
hyphae. This structure of the pileus will become evident at once if a
thin portion of the cap is placed under the microscope.

The _gills_ or _lamellae_ are thin plates or membranes radiating from the
stem to the margin of the cap. When they are attached squarely and
firmly to the stem they are said to be _adnate_. If they are attached
only by a part of the width of the gills, they are _adnexed_. Should
they extend down on the stem, they are _decurrent_. They are _free_ when
they are not attached to the stem. Frequently the lower edge is notched
at, or near, the stem and in this case they are said to be _emarginate_
or