SECTION HYGROTR \\l.\ 101 



mium differentiated. Pileus brama o\ nearly parallel, radiall) disposed 

 liyphac which arc without dark staining content in Melzer's reagent. 



('lamp connections not present. 



Habit, Habitat, and DISTRIBUTION — Gregarious Oil sand hank un- 

 der bracken ferns, Michigan, |nl\. 



Material Studikd — Michigan: Smith 35670 (type, from Middle 

 Bridge, Maple River, Cheboygan, July L3, L947). 



Observations — This is exceedingly close to subfuscescens to 

 which we attach it as a variety, but it differs in the strong disagree- 

 able odor of fresh specimens when their flesh is crushed and in the 

 more ellipsoid spores. It is similar in lacking the curious grannies in 

 Melzer's solution, lack of clamp connections, in the color change to 

 gray of cap and gills (but the color not changing when bruised ). and 

 hymeniform cuticle of pileus. Also the stipe retains its yellow tone. 

 H. paupertinus Sm. & Hes. differs in not having a cellular pileus cuti- 

 cle, in narrower gills, and less yellow in its coloration. 



42 



Hygrophorus atropunctus J. E. Lange 



Dansk Bot. Ark. 9: 96. 1938 



Omphalic atropuncta sensu Bresadola, pi. 271, vol. 6. 1928. 

 Hodophilus atropunctus (Lange) Heim, Les Champ. d'Eur., p. 219. 

 1957. 



Pileus 1-1.5 cm broad, convex, margin incurved, hygrophanous, 

 bister, darker in the center, paler toward the margin, surface slightly 

 velutinous-pruinate, paler and atomate when faded, rather fleshy, odor 

 and taste none. 



Lamellae distant (16-20 reach the stipe), lamellulae about equal 

 in number to lamellae, plano-arcuate and adnate-decurrent, thick, pale 

 brownish, somewhat powdery, at last dark grayish brown and white 

 pruinose from spores. 



Stipe 2-3.5 cm long, about 2 mm thick, concolorous with pileus, 

 paler above, undulating, upper half with scattered minute blackish 

 punctae or squamules. Veil none. 



Spores about 5x4/1, smooth, ovate-spheric. Basidia about 5 fx 

 broad, narrowly clavate. Hymenophoral trama of interwoven hyphae 

 ■3-5 \x broad. Epicutis of pileus an hymeniform layer of inflated cells 

 18-30 [x broad. Squamules on stipe of flexuous septate hyphae with 

 subfuscous contents. 



Habit, Habitat, and Distribution — Gregarious on the ground un- 

 der Fraxinus in beech woods. Europe (Denmark, by Morten Lange). 



Observations — We include this as an extralimitaJ species very 



