382 SECTION HYGROPHORUS 



spores and by the fibrillose veil. H. pustulatus was found in the same 

 area in 1943 and appeared to have a perfectly dry stipe. Previously 

 ( Smith, 1937b ) reported a collection of H. pustulatus from California 

 with a thin gelatinous universal veil. The latter was found during very 

 wet weather, whereas the Idaho collection was made during dry 

 weather. Since large numbers of carpophores were not available for 

 study in either instance, the discrepancy is merely pointed out here in 

 the hope that any who find H. pustulatus will pay particular attention 

 to the presence or absence of a gelatinous veil. H. olivaceoalbus has 

 both a glutinous sheath and one of fuscous fibrils beneath it. Conse- 

 quently, H. inocybiformis might be considered closely related to it. 



One collection (Smith 60104), when found, was very pale be- 

 coming gray, and staining ochraceous on the margin. Smith 54760 is a 

 slender form, but it has the large spores typical of the species. 



236 



Hygrophorus odoratus Sm. & Hes. 



Sydowia 8: 310. 1954 



Illustration: 

 Fig. 122. 



Pileus 2-4 cm broad, obtuse to broadly convex, expanding to almost 

 plane or disc slightly depressed and margin arched, dark ashy gray 

 over the disc, paler gray to pallid along the margin, when old with a 

 faint ochraceous tinge pervading throughout, surface viscid, fibril- 

 lose-streaked to merely matted-fibrillose beneath the viscidity. Context 

 soft, pallid; odor strongly aromatic (somewhat as in H. agathosmus) , 

 taste insipid. Lamellae decurrent, whitish when young, more creamy 

 in age, distant, broad, unchanging when bruised. 



Stipe 4-8 cm long, 3-6 mm thick at apex, pallid at first, unchanging 

 when bruised but in drying developing an over all faint ochraceous 

 tinge, equal or in some narrowed below, dry, glabrous, apex faintly 

 silky. 



Spores 11-14 X 6.5-8 /x, ovoid to broadly ellipsoid, smooth, hyaline, 

 hyaline to yellowish in Melzer's reagent. Basidia 4-spored, 40-62 X 

 8-10 /a. Pleurocystidia and cheilocystidia not seen. Gill trama divergent, 

 hyphae 5-8 /x broad. Cuticle a gelatinous zone, 180-300 /x broad, the hy- 

 phae repent, radially disposed, interwoven, 2.5-4 /x broad, an ixocutis 

 (similar to H. agathosmus) . Pileus trama chiefly radial. Clamp connec- 

 tions present in the gill trama and cuticular hyphae. 



Habit, Habitat, and Distbibution — Scattered on moist earth un- 

 der conifers, Idaho and Oregon, October. 



