SUBSECTION CAMAROPHYLLI 371 



not changing appreciably, moderately broad, subdistant, thickish, 1-2 

 tiers of lamellulae present. 



Stipe 4-6 cm long, 9-18 mm thick at apex, narrowed below, solid, 

 grayish-pallid, pale avellaneous within, unchanging when handled, 

 lower portion drying more or less concolorous, dry at all stages, neither 

 pruinose nor squamulose. 



Spores 7-9 X 3.5-4.5 /a, ellipsoid to suboblong, smooth, yellowish in 

 Melzer's reagent. Basidia 37-52 X 5-8 /a, 2- and 4-spored. Pleurocystidia 

 and cheilocystidia none. Gill trama divergent, hyphae 3-7(8) jx broad. 

 Cuticle a gelatinous zone (100-140 /j. thick) of colorless hyphae, which 

 are more or less erect, 2-3 ^ broad, forming an ixotrichodermium. No 

 hypodermium differentiated. Pileus trama of radial hyphae. Clamp 

 connections on the cuticular hyphae. 



Habit, Habitat, and Distribution — Gregarious, under conifers, 

 Idaho, August-September. 



Material Studied — idaho: Smith & Bigelow 46333, 46584 (type, 

 from Pappoose Creek, Seven Devils Mts., Aug. 23, 1954), 47018, 47314, 

 53530. 



Observations — This species is related both to H. kauffmanii, which 

 has gills pinkish becoming brown to orange-cinnamon; and to H. sub- 

 pungens, which has much paler colors. Our collections are from conifer- 

 ous woods, Idaho, late summer and early autumn, all characterized by 

 the avellaneous lamellae. 



228 



Hygrophorus bakerensis Sm. & Hes. 



Lloydia 5: 88. 1942 



Illustration: 

 Fig. 119. 



Pileus 4-15 cm broad, obtuse when young, the margin incurved 

 and cottony, in age becoming plane or nearly so, the margin sometimes 

 elevated, margin whitish, disc "sudan brown" shading to "tawny-olive" 

 or "amber brown" shading to "cinnamon-buff" toward the whitish mar- 

 gin ( disc some shade of yellow-brown, paler toward the margin ) , sur- 

 face glutinous when wet, merely viscid in age, appressed-fibrillose be- 

 neath the gluten. Context thick ( 1 cm near the stipe ) , tapering evenly 

 to the margin, white, firm, unchanging when cut or bruised; odor heavy 

 but fragrant and very characteristic, reminding one somewhat of al- 

 monds, taste perfectly mild. 



Lamellae decurrent or soon becoming so, close to subdistant ( 56-88 

 reach the stipe, 2-3 tiers of short individuals), narrow but becoming 



