160 SECTION HYGROCYBE 



cuticle a trichoderm of elongate hyphae which become appressed to 

 the pileus, clamp connections mostly absent at the cross walls, end-cells 

 cylindric to ellipsoid. Clamp connections present quite regularly at the 

 base of the stipe. 



Habit, Habitat, and Distbibution — Gregarious in a Sphagnum 

 bog, Michigan, September. 



Matebial Studied — Michigan: Smith 42560 (type, from Pike 

 Lake, Luce County, Sept. 11, 1953), 42561, 42562, 42563, 42564, 42565, 

 61247, 61249. 



Obsebvations — This agaric might, at first sight, appear to be a 

 growth form with a long slender stipe, a variation caused by the habi- 

 tat. However, the rather conspicuously striate pileus which becomes 

 squamulose only in age is not a combination of characters likely to be 

 influenced by habitat. In addition, clamp connections are relatively 

 rare on the septa of the cuticular hyphae — a character which may indi- 

 cate a trend toward the clampless species, most of which appear to 

 have been derived from the miniatus group. 



82 



Hygrophorus squamulosus Ellis & Ev. 



Phil. Acad. Sci. Proc. 1893: 440. 1894 



Hygrophorus miniatus var. firmus Sm. & Hes. Lloydia 5: 27. 1942. 

 Camarophyllus squamulosus (Ellis & Ev.) Murr., North Amer. Flora 

 9: 388. 1916. 



Illustrations: 



Fig. 45; also 2a. 



Smith, Mich. Acad. Sci., Arts & Letters 20, pi. 32 (as H. squamulosus) . 



Pileus 1.5-5 cm broad, obtuse to convex, the disc often slightly de- 

 pressed, the margin incurved, color "flame scarlet," "grenadine red," to 

 "orange chrome" (bright red to brilliant orange-yellow), margin yel- 

 lowish at times, fading throughout to "ochraceous-salmon," finally be- 

 coming bright yellow over all, surface dry or only slightly moist, gla- 

 brous when young but very soon breaking up into minute or distinct 

 fibrillose scales especially near the margin. Context thick and firm, con- 

 colorous with the surface and fading to yellow; odor and taste not dis- 

 tinctive. 



Lamellae bluntly adnate or with a slight decurrent tooth, seceding 

 quite readily, reddish to pale yellow, close to subdistant ( 18-22 reach 

 the stipe, 2-3 tiers of short lamellulae ) , broad ( 4-6 mm ) , thick, edges 

 even. 



Stipe 3-5 cm long, 3-6 mm thick, "apricot yellow" or tinged with 



