144 SECTION HYGROCYBE 



Lamellae decurrent, "cream buff" or more pallid (pale dingy yel- 

 low to pallid), distant to subdistant, broad. 



Stipe 3-6 cm long, 2-3.5 mm thick, orange in midportion, pale 

 above and below, equal or slightly enlarged at base, naked, glabrous, 

 translucent. 



Spores 9-14 X 5-8 ^, variable in size, ellipsoid to somewhat bean- 

 shaped (in side view), smooth, hyaline in KOH and Melzer's reagent. 

 Basidia 2- or 4-spored, 38-52 X 9-11 fx, sterigmata 6-8 fx long. Pleuro- 

 cystidia and cheilocystidia similar, sporadic in appearance and often 



Fig. 39. 



H. turundus var. turundus 



difficult to locate, 40-60 X 12-20 p, clavate to broadly clavate- 

 subcapitate, hyaline, thin- walled, buried in the hymenium. Gill trama 

 subparallel to somewhat interwoven, hyaline in KOH. Cuticle a trich- 

 odermium of enlarged hyphal cells with cystidioid to elliptic end- 

 cells often having secondary septa. Hypodermium none. Pileus trama 

 of radial hyphae. Clamp connections present at primary septa. 



Habit, Habitat, and Distbibution — Scattered to gregarious on 

 moist soil and wet moss, often on Sphagnum at high elevations, 

 Massachusetts, Michigan, Idaho, Montana, Oregon, and Washington, 

 summer and fall; also in Greenland, Iceland, Faeroes, Europe, and 

 Japan. 



Matebial Studied — idaho: Smith 46281, 54329. Massachusetts: 

 Bigelow 8252. Michigan: Kauffman, Ann Arbor, July 8, 1924; Smith 

 1101, 7581, 42571, 43362, 50893, 57493, 58028. Montana: Mains 

 6045. obegon: Smith 24052, 26962. Washington: Imshaug 1790; Sim- 

 mons 1583; Smith 29365, 29528, 29560, 29585, 29586, 29865, 29902, 

 29943, 29953, 29959, 30558, 40152, 40342, 40852, 42481, 43923. 



Obsebvations — This species fruits during both the summer and 

 fall. Smith and Hesler reported ( 1942 ) it from North America on the 

 basis of a Kauffman collection. It now appears that this collection is a 



