182 THE AGARICACEAE OF MICHIGAN 



Bresadola, Fungi Tricl., Vol. I, PI. 9 (Hygrophorus bresa- 



dolac Quel.). 

 Plate XXIV of this Report. 



PILEUS 2-8 cm. broad, oval, subconic or flattened convex when 

 young, broadly convex and at length almost plane when mature, 

 or varying subcampanulate and umbonate, umbo usually subob- 

 solete, glutinous when fresh, bright red or orange-vermillion when 

 young or in full vigor, becoming paler with age or after freezing, 

 often snbvirgate, even or slightly rugulose from the drying gluten, 

 margin at first incurved then decurved or spreading. FLESH 

 white or tinged orange under the separable pellicle, soft, rather 

 thick. GILLS decurrent, distant, moderately broad in middle, 

 acuminate at ends, arcuate, thick, intervenose, white or tinged yel- 

 lowish, trama of divergent hyphae. STEM stout, 3-10 cm. long, 

 8-20 mm. thick, variable in length, equal or irregularly subcom- 

 pressed, soft and spongy within, not hollow, straight or flexuous, 

 hyaline-tchite, floccose-fibrillose to the apical, obsolete annulus, al- 

 most glabrous at times, variegated with glistening spots from the 

 drying of the gluten, sometimes ochraceous-stained when old, apex 

 subglabrous to silky, base usually deeply imbedded in substratum 

 or subrooting. UNIVERSAL VEIL of hyaline gluten. SPOPvES 

 8-9.5x5-0 micr., broadly elliptical, smooth, white in mass. BA- 

 SIDIA slender, 50-00x0-8 micr., 4-spored, sterigmata long and 

 prominent. ODOR and TASTE mild. 



In troops, etc., solitary or caespitose. In tamarack swamps. 

 Ann Arbor. October-November. Frequent locally, appearing every 

 fall in the same places. 



This is the American form of Hygrophorus aureus of Europe. 

 The illustrations of European authors as well as those of Peck, 

 indicate a smaller average size and a pileus markedly umbonate. 

 In our region as well as in the Adirondack Mountains I have seen 

 such plants occur with the rest, but the majority are broadly convex 

 with or without an obsolete umbo and as a rule are larger than the 

 European form. Sometimes vestiges of a distinct floccose annulus 

 occur, but more often this cannot be seen; on the other hand, the 

 stem is usually covered by a white, floccose-fibrillose, appressed 

 sheath which becomes dingy ochraceons or pale sordid reddish on 

 drying, especially where gluten has dropped from the margin of the 

 cap on the stem. Plants in the same patch vary greatly in the 

 size of the pileus and the stem. The stem of the young plant is at 

 first large and stout as compared with the flat or convex, narrow 

 young pileus. The partial veil is floccose-fibrillose. The margin of 



