436 THE AGARICACEAE OF MICHIGAN 



453. Cortinarius juberinus Fr. var. 



Epicrisis, 1836-38. 



Illustration: Cooke, 111., PL 797. 



PILEUS 2-4 cm. broad, cainpanulate-convex, then expanded, uni- 

 boiiate or umbo obsolete, chestnut-brown to watery cinnamon when 

 moist, ochraceous when dry, subhygrophanous, glabrous, even, silky- 

 shining when dry, margin at first incurved and white-silky from the 

 cortina. FLESH concolor, thin. GILLS adnate then subemar- 

 ginate, subdistant, rather broad, thin, at length ventricose, pallid- 

 brown then cinnamon, interspaces somewhat venose, edge concolor. 

 STEM 3-7 cm. long, 3-5 mm. thick, moderately slender, equal or sub- 

 equal, even, stuffed then hollow, pallid at first, then brownish or 

 fuscescent, innately silky-fibrillose. CORTINA white, fugacious. 

 SPORES 6.5-7.5x4.5-5 micr., broadly elliptic-oval, scarcely rough. 

 BASIDIA 27-30 x 6-7 micr. ODOR and TASTE slight or none. 



Solitary or scattered. On the ground near wet or springy places 

 in woods or swamps. Ann Arbor, New Richmond. September. In- 

 frequent. 



Distinguished by the spores, subdistant gills, hollow stem and 

 colors. The pileus does not become black-stained nor black-streaked 

 in age as do some similar species of this subgenus. The color of the 

 pileus is variable, sometimes approaching tawny-cinnamon, and its 

 surface is silky-shining as in C. cinnamomeus. Our plant agrees 

 better with the unpublished figures of Fries and those of Cooke, than 

 with the description of Fries; in his description, Fries states that 

 the pileus is very bright cinnamon-fulvous, but this is not shown in 

 his figure. The habitat is also different. The spores agree with the 

 size given by Cooke, and doubtless we have his species here. 



454. Cortinarius praepallens Pk. 

 N. Y. State Bull. 2, 1887. 



•TIL10US 1-4 cm. broad, subconical, then convex or expanded, 

 glabrous, hygrophanous, brown or chestnut color when moist, pallid- 

 ochraceous when dry. FLESH yellowish-white, thin. GILLS 

 rounded behind or subemarginate, crowded, lanceolate, reddish-um- 

 ber I lien fuscous cinnamon. STEM 2-7 cm. long, 4-S mm. thick, 



