188 THE AGARICACEAE OF MICHIGAN 



rather soft. GILLS adnate to decurrent, subdistant to close, rather 

 narrow, creamy-white, interspaces venose, trama of divergent 

 hyphae. STEM slender, rarely stout, 3-7 cm. long, 4-6 mm. thick 

 (rarely 10-12 mm.), equal or tapering downward, dry, solid, straight, 

 or curved at base, sometimes flexuous, rather fragile, apex fioccose- 

 scabrous, floccose-prumose elsewhere, glabrescent, white or pallid. 

 SPORES elliptical, smooth, 6-8x3.5-4.5 micr., white. BASIDIA 

 slender, 36-38 x 6-7 micr., 4-spored. ODOR and TASTE mild. 



Gregarious or subcaespitose. On the ground in oak woods. Ann 

 Arbor, Detroit. October. Infrequent. 



This plant has been found in several places in successive years. 

 It is well-marked, but differs in some respects from the published 

 descriptions and figures of H. fusco-albus. It appears that there 

 is no unanimity among European mycologists as to this species. 

 It was first figured by Lasch. Ricken figures it as a stout plant 

 with a viscid stem and says the stem is glutinous-peronate. This 

 departs widely from the description of Fries, Gillet, Massee and 

 others. Cooke's figure more nearly depicts our plant. Fries says 

 the gills are broad, but in our specimens they were always rather 

 narrow. Peck (N. Y. State Mus. Bull. 116) has included it under 

 H. fusco-albus, in the sense of Fries, in his monograph. The spores 

 of our plant are slightly smaller than given by Peck, and much 

 smaller than those given by Cooke and Massee. In view of these 

 discrepancies and differences, it has seemed best to bestow on our 

 plant at least a varietal position. It seems to come halfway be- 

 tween H. fusco-albus and H. licido-albus. The partial floccose veil 

 disappears early except on the involute edge of the pileus. The 

 stem is delicately floccose and entirely dry when fresh or young. 



167. Hygrophoius Jeporinrs Fr. 



Epicrisis, 1836-38. 



Illustration: Cooke, 111., PI. 930. 



PILEUS 3-10 cm. broad, at first oval-campanula te, at length ex- 

 panded-plane, obtuse, often gibbous or irregular, opaque, rufous- 

 testaceous to fulvous-rufescent, variegated with a white, hoary, silk- 

 iness when young, especially on margin, provided with a subviscid, 

 separable, thin pellicle, becoming subfibrillose or subvirgate. 

 FLESH thick, compact on disk, abruptly thin on margin, firm, pal- 

 lid, tinged rufescent to rufous-fulvous. GILLS avcnate-decurrent, 

 rigid, thick, subdistant, distinct, attenuate at both ends, frrrugi- 



