peridium

When the spores mature the upper part of the covering (peridium) becomes torn and only the lower part remains.

Among the Mushrooms A Guide For Beginners Caroline A. Burgin

The opening of a peridium, when ripe, to discharge the spores.

Among the Mushrooms A Guide For Beginners Caroline A. Burgin

The outer part of the wall (outer peridium) when quite young separates into warts or scales of varying size, large ones arranged quite regularly with smaller ones between.

Studies of American Fungi. Mushrooms, Edible, Poisonous, etc. George Francis Atkinson 1886

Page 209 giant buff-ball, and the _L. cyathiforme_, where the wall or peridium

Studies of American Fungi. Mushrooms, Edible, Poisonous, etc. George Francis Atkinson 1886

At this stage the plant is a very beautiful object with the crown of vermilion strips radiating outward from the base of the fruit body at the top of the stem, and the inner peridium resting in the center and terminated by the four to seven teeth with vermilion edges.

Studies of American Fungi. Mushrooms, Edible, Poisonous, etc. George Francis Atkinson 1886

The giant puff-ball, and the _L. cyathiforme_, where the wall or peridium ruptures irregularly, have been placed in a genus called _Calvatia_; certain other species which are nearly globose, and in which the wall is of a papery texture at maturity, are placed in the genus _Bovista_.

Studies of American Fungi. Mushrooms, Edible, Poisonous, etc. George Francis Atkinson 1886

This name is given to the genus because of the hard peridium, the wall being much firmer and harder than in

Studies of American Fungi. Mushrooms, Edible, Poisonous, etc. George Francis Atkinson 1886

Hymenium either free at the beginning, or enclosed either permanently or temporarily in a more or less perfect peridium or veil.

Studies of American Fungi. Mushrooms, Edible, Poisonous, etc. George Francis Atkinson 1886

At maturity the wall, or peridium, breaks into brittle fragments, which disappear and the purplish mass of the spores is exposed.

Studies of American Fungi. Mushrooms, Edible, Poisonous, etc. George Francis Atkinson 1886

When mature the base or stem, which is formed of reticulated and anastomosing cords, elongates and lifts the rounded or oval fruiting portion to some distance above the surface of the ground, when the gelatinous volva ruptures and falls to the ground or partly clings to the stem, exposing the peridium, the outer portion of which then splits in the manner described.

Studies of American Fungi. Mushrooms, Edible, Poisonous, etc. George Francis Atkinson 1886