428 THE AGARICACEAE OF MICHIGAN 



pressed, stuffed, violaceous above, whitish below, fibrillose, glabres- 

 cent and shining when dry. CORTINA whitish. SPORES ellip- 

 tical, slightly rough, 7-8x5-6 micr. ODOR and TASTE mild. 



Subcaespitose. On the ground in frondose woods. Ann Arbor. 

 September. Rare. 



This is well illustrated by the figures of Fries and of Gillet. 

 Ricken describes a plant with spores measuring 10-12 x 5-6 micr., and 

 with a much darker pileus. The pileus soon fades. It is to be 

 noted that although Fries describes the moist pileus as "dark bay" 

 color, his figures are much paler. I have not seen it dark-colored 

 and that character may belong to another species such as the one 

 described by Ricken. 



442. Cortinarius livor Fr. 



Epicrisis, 1836-38. 



PILEUS 3-4 cm. broad, firm, campanulate, obtuse, sometimes 

 gibbous, sooty -broicn, obscurely olive-gray on center, scarcely hygro- 

 phanous, not fading, even, innately subtomentose on disk, margin 

 at first incurved. FLESH thickish on disk, sooty-brown under the 

 center, pallid or whitish elsewhere. GILLS adnate then emarginate, 

 close, relatively broad, pallid-cinnamon at first. STEM 4-5 cm. long, 

 sub-equal, sometimes narrower at base, sometimes subbulbous, 

 slightly violaceous above, becoming dingy olivaceous to brownish be- 

 low, solid, firm, at first violaceous, within. SPORES broadly ellip- 

 tical, slightly rough, obtuse, 7-8x5 micr. BASIDIA 30x7 micr., 

 4 spored. ODOR slight. 



Solitary. On the ground in beech and pine woods. New Rich- 

 mond. September. Rare. 



There is an olive to sooty tinge on cap and base of stem, which 

 along with the violaceous apex of the stem is quite characteristic. 

 The plate of Fries at Stockholm, marked typical, shows a plant 

 with a much shorter stem, otherwise our plant is very like it. 



443. Cortinarius castaneus Fr. 

 Syst. Myc, 1821. 

 Illustration: Cooke, 111., PI. 842. 



"PILEUS L'-.") cm. broad, firm, campanulate-convex. expanded or 

 gibbous, even, subumbomte, scarcely hygrophanous, dark chestnut 





