XII. THE CLITOCYBES AND COLLYBIA. 
The genus Clitocybe has the gills attached to the stem, as in 
Tricholoma, but they are not rounded or notched on the edge 
next the stem. They are united to the stem by their whole 
width, and usually they are prolonged downward on the stem, or 
in other words are decurrent. This is the principal character by 
which they are separated from the genus T'’richoloma. 
More than twenty species of this genus have been classed as 
edible, but it has been permitted us to test but a few of them. 
Those here noticed may be tabulated as follows: 
Cap thick-fleshed or broadly obconic, Ay 
Cap not thick-fleshed or not obconic, 2. 
1. Cap grayish, gills close together, C. nebularis. 
1. Cap brown or blackish-brown, gills not close, C. media. 
2. Cap rather thin, funnel-shaped when ma- 
ture, C. infundibuliformis. 
2. Cap thin, convex or plane, C. laccata. 
The Clouded clitocybe, Clitocybe nebularis, takes its name 
from the clouded-gray appearance of its thick cap, which is at 
first convex, but when mature, either flat or a little depressed. 
Its flesh is white, thickest in the middle, and in a vertical section 
is seen to taper rapidly downward into the stem. The gills are 
close together and rather narrow for the size of the plant. They 
are white or yellowish-white. The stout solid stem usually ta- 
pers upward from the base and is whitish. 
The cap is two to four inches or more broad, the stem one to 
two inches long and about half an inch thick. The Clouded 
mushroom grows in woods, and sometimes forms large tufts or 
clusters among fallen leaves. It is found in autumn, but is not 
very common in this country. Authors differ in their estimate 
of the edible qualities of this mushroom, but the more recent 
ones generally agree in classing it as edible. 
Still more rare is the Intermediate clitocybe, Clitocybe Media. 
This species grows among moss in dense woods in cool mountain- 
ous places. Its cap is grayish-brown or blackish-brown, being 
generally darker-colored than that of the Clouded mushroom. 
Its flesh is white and mild in taste. The gills are whitish, wide 
apart, and have little transverse ridges or veins in the spaces be- 
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