CLASSIFICATION OF AGAR* 



The gills are darkest when young. The taste is unpleasant, 

 sembling thai <»i Irmillaria mellea." 



This is very close to (7. rigida (sense of Rick en) in stature, colo 

 and spores. C. rigida is, however, nol uniformly described bj I 

 pean authors, especially as to its spore-size. 



436. Cortinarius rigidus I'r. (var.j 



Epicrisis, L836-38. 



Illustrations: Cooke, 111., PL 791. 



Quelet, in Grevillea, Vol. VII, PL L13, Pig. I. 



ri LIU'S 1-2.5 rni. broad, convex or conico-convex, ombonate or 

 obtuse, glabrous, shining, rufous-brown to chestnut when m 

 ochraceous to buff color when dry, hygrophanous, even and Borne 

 times with white-silky margin, elsewhere naked. FLESH t 1 1 in. 

 rather firm. GILLS adnate then emarginate, rather close, moderate 

 ly broad, ventricose, rufous-cinnaymon. STEW l 5 cm. long, 2-4 mm. 

 thick, equal, flexuous, fuscescent, subfibrillose belom the whitish, 

 median annulus, apex pruinose. si'OKKS elliptical, smooth, 

 6-7.5x4 niicr. ODOR somewhat fragrant, noticeable. 



Gregarious or solitary. On the ground in frondose w Is. Ann 



Arbor. September. * 



It is quite difficult to get any correct idea of this species from 

 European notices. The spore-measurments per Baccardo are 

 "6-11x4-6," per Bicken, "6-7x3" and according to others, inter- 

 mediate in size. Our plants are more slender and less dark colored 

 than 0. nigrellus. The species lias the size of C. paleai • us bu1 h 

 glabrous cap. 



437. Cortinarius rigidus (Scop. Eiicken 



Blatterpilze, 1912. 



PILEUS 2-5 cm. broad, broadly campanulate-expanded, amh 

 firm and glabrous at first, hygrophanous, even, walnut-brown 

 iRidg. i when moist, fawn-color on losing moisture, Boon hoary, 

 silky shining, margin at first incurved and white-silky. FLESH 

 concolor, Boon pallid, scissile. GILLS adnate, close, thin, n 

 erately broad, ai firsl pinkish-buff (Bidg.) then da] color (B 

 ,>>\i:<- paler. STEM 3-5 cm. long, I 8 nun. thick, equal, stuffed, soon 



