SI BS1 CTION HYGRi H ) Bl 119 



bygrophanous, margin finally spreading, thin and striatulate. ( ontext 

 thin, brittle, concolorous with surface; odor and t.istr nol distinctive. 



Lamellae broadly adnate, "capucine yellow" to "deep chrome" 

 (not brighter than pileus), broad, subdistant. 



Stipe 3-6 cm long, is mm thick, "primuline yellow" (clear bright 



yellow '. equal Or narrowed below, naked and glabrous, moist. 



Spores 7- 1 ) 1-5 ,<<• ellipsoid, smooth. Basidia 36-44 • 7- ( ) ,«. 

 4-spored. Pleurocystidia and cheilocystidia none, Gill trama oi short- 

 ellipsoid cells more or less parallel in central strand but flanked 1>\ in- 

 terwoven tissue (subhymenium) on either side. Pileus trama with a 

 rudimentary non-gelatinous cuticle, flesh Boccose and interwoven. 

 (.'lamp connections none. 



I1\bit, HABITAT, and Distrtbution — Scattered under hemlock. 

 Tahquamenon Falls. Michigan. August-September. 



Material Studied — Massachusetts: Bigelow 9238. Michigan: 

 Bigelow 684; Smith 33324 (type, Tahquamenon Falls State Park. 

 Sept. 5, 1949), 37514, 38356. 



Observations — This variety has been somewhat of a puzzle, but 

 collections over a three-year period and comparisons with typical ma- 

 terial have shown it to be constant and distinct. In var. marginotus the 

 gills are "cadmium orange." This variety approaches //. auratocephalus 

 more closely than does any other species. 



53 



Hygrophorus subflavidus ( Murr. ) Mutt. 



M'vcologia 4: 332. 1912 



Hydrocybe subflavida Murr., Mycologia3: 197. 1911. 



Pileus reaching 5 cm broad and 3 cm high, conic to subcampanu- 

 late, umbonate, pale flavous, dull luteous in very young stages and on 

 the umbo, moist, smooth, becoming striate in old or wet specimens. 



Lamellae adnate with a decurrent tooth, pale yellow, broad, ven- 

 tricose, rather distant. 



Stipe 4-5 cm long. 4-7 mm thick, pale flavous, glabrous, cvlindric, 

 equal. 



Spores 8-12 X 4.5-6.5(7) /j., ellipsoid, smooth, yellowish in Melzer's 

 reagent. Basidia 40-57 X 8-12 ft, 2- and 4-spored. sterigmata stout. 

 Pleurocystidia and cheilocystidia none 1 . Gill trama parallel to subpar- 

 allel. Cuticle of appressed, non-gelatinous hyphae, 3-5 // broad. No 

 hvpodermium. Pileus trama of radially disposed hyphae. Clamp con- 

 nections absent. 



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



