330 



THE AGARICACEAE OF MICHIGAN 



illicit be separated. Ricken has discovered two forms with different 

 spore sizes, one which he calls the type has spores 13-15x7-8 micr. ; 

 the other, which he calls var. repandd has spores 11-13x0-7 micr. 

 All collections examined by me, including two of Peck's and several 

 from Hhaca, N. V., yielded the spore-size given in my description. 

 Two of Peek's collections, from Sand Lake and Catskill Mountains 

 referred to in his 23rd Report, when examined had spores measuring 

 15-19x7-8.5 micr., and in other respects showed that they did not 

 belong here, but are probably close to G. muscigenus Pk. 



310. Cortinarius cylindripes Kauff. 

 Bull. Torr. Bot. Club, Vol. 32, p. 321, 1905. 



Illustrations: Ibid, Fig. 2, p. 30G. 



Jour, of Mycology, Vol. 13, p. 30, PI. 98, 1907. 

 Mycological Bull., Vol. V, Fig. 211, p. 3 IS, 1907. 

 Plate LXIV of this Report. 



PILEUS 3.7 cm. broad, very glutinous at first and shining, later 

 opaque, at the very first lavender, then yellowish with a violaceous 

 tinge, at length brownish-oehraceous, somewhat stained by these 

 colors at various stages, obtusely orbicular when young, then cam- 

 panulate and expanded, rather small in comparison with the length 

 of the stem, margin incurved and pellucid-striate, surface smooth, 

 at length longitudinally wririlded. FLESH thick on disk, thin else- 

 where, violaceous, soon sordid-white. GILLS rather broad, at length 

 5-8 mm., adnate, emarginate, not attenuate in front, violaceous or 

 lavender when young, becoming pale cinnamon, not crowded, thin, 

 edge serratulate-flocculose and paler, somewhat wrinkled at the 

 sides hut not veined. STEM 8-10 cm. long, 5-9 mm. thick, elastic, 

 remarkably equal, covered by a violaceous, glutinous, universal veil, 

 which remains as evanescent, adnate patches and at its junction 

 with the partial veil as a slight annulus, smooth or fibrillose-striate 

 at the apex, violaceous to dingy white within, solid stuffed. 

 SPORES almond-shaped, rough-tuberculate, inequilateral-elliptic, 

 12-15x6.5-8 micr., dark brown. BASIDIA 10-15x10-13 micr., 1- 

 spored, with sterigniata, 5-7 micr. long. ODOR and TASTE not 

 specific. 



Gregarious or subcaespitose. On low, rich ground or humus, 

 conifer and frondose woods. Throughout the State. Fronf late July 

 to early October. Frequent. 



