86 SECTION CAMAROPHYLLOPSIS 



29 



Hygrophorus fallax Sm. & Hes. 



Sydowia 8: 315. 1954 



Pileus 10-18 mm broad, convex, dark smoky gray to fuscous black 

 when moist, opaque at all stages, fading to a dull dingy gray, moist, 

 somewhat hygrophanous, glabrous, not becoming squamulose when 

 faded. Context fragile; no distinctive odor or taste. 



Lamellae adnexed, dingy drab gray, edges usually paler, sub- 

 distant, broad, ventricose, fragile, and the edges very readily fracturing. 



Stipe 2-3.5 cm long, 2-2.5 mm thick, concolorous with pileus or 

 darker, equal or enlarged at both ends or at either end, glabrous, apex 

 faintly pruinose, moist to dry. 



Spores 5-6 X 4-5 /x, broadly ellipsoid to globose, smooth, hyaline in 

 KOH and yellowish in Melzer's solution. Basidia 20-25 X 5-6 //,, 

 4-spored. Pleurocystidia and cheilocystidia none. Gill trama inter- 

 woven, hyphae 4-8 n broad, dingy in KOH, in Melzer's reagent with 

 yellowish, granular content variously distributed. Cuticle of repent hy- 

 phae 8-12 fx broad, at times more or less erect, the terminal elements 

 inflated and usually repent. Pileus trama of radially disposed, com- 

 pactly interwoven hyphae. Clamp connections none. 



Habit, Habitat, and Distribution — On moss, Tennessee, August. 



Material Studied — Tennessee: Hesler (type, Univ. Mich., No. 

 10661, Indian Camp Creek, Sevier County, Great Smoky Mts. Na- 

 tional Park, Aug. 30, 1938). 



Observations — This species differs from H. microsporus in its 

 larger spores and in its non-squamulose pileus. The dark granules in 

 the hyphae as seen in Melzer's reagent are common to both. 



30 



Hygrophorus basidiosus (Pk.) Pk. 



N. Y. State Mus. Bull. 116: 57. 1907 



Clitocybe basidiosa Pk., N. Y. State Mus. Bull. 1: 215. 1887. 

 C am arophy litis basidiosus (Pk.) Murr., North Amer. Flora 9: 389. 

 1916. 



Illustration: 

 Fig. 23. 



Pileus 1-4 cm broad, convex to plane, subumbonate at times, gray- 

 ish brown when moist, fading to pale gray, near "pale gull gray" (no 

 comparable colors in Ridgway), glabrous or appearing glaucous, hy- 

 grophanous, pale ashy buff when dry, radiate-streaked in fading. Con- 

 text whitish; odor and taste not distinctive. 



