Rusty-spored Series 
when mature. Attached to stem when young, free when 
older. 
Veii—Pale brown, colour of stem. 
Stem or Stipbe— 
Pale brown- 
ish, darker at ae 5 um a 
base. Softer 
texture with- 
in than with- 
out. Stem 
length of 
specimen 
photo- 
graphed, 2 
inches. 
Spores — Rusty 
brown. 
Flesh—Pale 
brownish; 
brittle. No 
taste or 
marked 
odour. Section of P. aggericola 
Time—October. 
Habitat—Specimen photographed grew among grass and leaves 
in a New Jersey garden. 
GENUS CORTINARIUS 
This genus contains many species which are distinguished 
by the rusty yellow colour of their spores and by the webby 
character of the veil. It is of the utmost importance in identify- 
ing species of Cortinarius to know the colour of the gills of the 
young plant, as the gills of the old plants are almost uniform in 
colour, owing to their being dusted with the rusty yellow spores. 
In addition, one should carefully note the colour of the young 
plant compared with the old; the surface, whether sticky or dry, 
smooth or hairy; the taste; and the markings left on the stem by 
the retreating.veil. All species have their gills attached to the 
stem, and some have them notched at the stem end. They may 
be looked for along the borders of woods and groves in hilly 
regions, during the latter part of the summer. 
Cor-t?-na’-ri-tis 
85 
