Among the Mushrooms | Page 8

in the gills, change into a waxy mass, at length removable from the trama. The trama is that substance which extends with and is like in structure to the layer of mother cells.[1] It lies between the two layers of gills in Agarics. The gills seem full of watery juice, and they are more or less decurrent, i. e., extend down the stem. This genus contains many bright-colored and shining species.
[Footnote 1: In the young plant it forms the framework of the gills.]
We are obliged to refer to the hymenial layer in this place, though the beginner will scarcely understand the meaning of the term. The distinguishing peculiarity of this genus consists in the cells changing to a waxy mass. In the chapter on the structure of mushrooms we have tried to explain something about the cells and the Hymenium.
+LACTARIUS = milk.+
This genus is fleshy, growing on the ground; the cap is often depressed in the centre. The gills are adnato-decurrent, that is, partly attached and prolonged down the stem. They are waxy, rather rigid and acute at the edge. The distinctive feature is the milk that flows when the gills are cut. Sometimes the milk changes color.
+RUSSULA = red.+
This genus grows on the ground, is fleshy, and soon decays. The cap is depressed, or becomes so at a later stage of growth. The stem is polished, generally white, and is very brittle. The gills are rigid, fragile, with an acute edge, and mostly equal in length. Some species exude watery drops. It contains many species of beautiful colors.
+CANTHARELLUS = vase or cup.+
The principal characteristic of this genus consists in the fold-like nature of its gills. The gills are thick, with an obtuse edge, and are branched and decurrent. The genus is fleshy, soft, and putrescent, and has no veil. Some plants grow on the ground and others on mosses.
+MARASMIUS = to wither.+
The genus is tough and dry, not decaying, but shrivelling, and reviving when wet. The stem is tough (cartilaginous.) The gills are rather distant, the edge acute and entire. The plants often have a peculiar smell and taste, like garlic. They are small and thin, commonly growing on the outside of another plant (epiphytal) on the ground, on putrid leaves, or on roots of grasses.
+AMANITA.+
The origin of this name is doubtful. Galen, an ancient Greek physician, is said to have given the name to some edible fungi (Stevenson). It is distinguished as the only genus that has both volva and ring. The young plant is enveloped by a universal veil which bursts at maturity. The volva around the base of the stem is formed by the splitting or bursting of the veil, and its different modes of rupture mark the several species. It is sometimes shaped very prettily, and has the appearance of a cup around the stem. It contains many poisonous as well as edible mushrooms.
+LEPIOTA = a scale.+
This genus has a universal veil. The gills are free. Sometimes the ring, or annulus, is movable on the stem. The cap is often covered with warts, or the skin torn into scales, and the stem sometimes inserted in a cup or socket.
+ARMILLARIA = ring or bracelet.+
There is no universal veil in this genus, only a partial one that forms a ring, or sometimes only indicating the ring by scales. The species usually grow on the ground.
+TRICHOLOMA = from two Greek words, hair and fringe.+
This genus is especially noted for its sinuate gills. They have a tooth next to the stem. All grow on the ground and are fleshy. There are sometimes fibrils which adhere to the margin of the cap, the remains of the veil. There are no plants in this genus that are considered poisonous.
+CLITOCYBE = a declivity.+
The gills in this genus are attenuated behind and are attached to stem (adnate) or run down it (decurrent.) The cap is generally plano depressed or funnel-shaped (infundibuliform). Some are fragrant; the odor resembles fresh apricots.
+COLLYBIA = a small coin.+
The stem in this genus is tough or stuffed with a pith, and covered with a cartilaginous rind. The margin of the cap is smooth and turned under at first (involute). The gills are soft, free, or only adnexed behind. The plants grow on the outside of wood and leaves, even on fungi, but are often rooted on the ground, and do not dry up. The gills are sometimes brightly colored.
+MYCENA = a fungus.+
In this genus also the stem is cartilaginous, the cap is sometimes bell-shaped (campanulate) and slender. The plants are generally small and fragile. The cap is from 1/8 to 1? inch broad. The stem is sometimes filiform, and they grow on stumps and sticks, dead wood, twigs and leaves. They may be found early in the season, but oftener from August to November.
[Illustration: Omphalia alboflava. Photographed by C.