THE RUSTY-SPORED AGARICS 



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Cortinarius umidicola. Kauff. 



Umidicola means dwelling in moist places. Pileus as much as 16 cm. broad 

 (generally 6-7 cm. when expanded), hemispherical, then convex and expanded, 

 with the margin for a long time markedly incurved ; young cap heliotrope-purplish 

 with umber on disk, or somewhat fawn-colored, fading very quickly to pinkish- 

 buff, in which condition it is usually found ; margin when young with narrow 

 strips, of silky fibrils from the universal veil ; pileus when old covered with 

 innate, whitish, silky fibrils, hygrophanous ; surface punctuate, even when young. 



Figure 245. Cortinarius umidicola. One-half natural size. Caps pinkish-buff. 



Flesh of stem and pileus lavender when young but soon fading to a sordid white, 

 thick on disk, abruptly thin towards margin, soon cavernous from grubs. The 

 gills are very broad, as much as 2 cm. ; at first lavender, soon very pale-tan to 

 cinnamon ; rather distant, thick, emarginate with a tooth ; at first plane, then 

 ventricose; edge slightly serratulate, concolorous. Stem as much as 13 cm. long 

 (usually 8 to 10 cm.), 1-2 cm. thick, usually thickened below and tapering slightly 

 upwards, mostly thicker also at apex, rarely attenuate at the base, sometimes 

 curved, always stout, solid, lavender above the woven, sordid white, universal veil, 

 which at first covers the lower part as a sheath, but soon breaks up so as to leave 



