298 SECTION HYGROPHORUS 



Fig. 90. H. occidentalis 



Stipe 2-7 cm long, 3-10 ( 15 ) mm thick, pallid or concolorous with 

 the pileus, equal above a tapered base, glutinous below, with ap- 

 pressed white fibrils beneath the gluten, apex minutely white punctate 

 or pruinose-punctate, white within, solid. 



Spores 6-8 X 3.5-5 /x, ellipsoid, smooth, yellow in Melzer's reagent, 

 white in mass. Basidia 29-43 X 6-8 p, 4-spored. Pleurocystidia and 

 cheilocystidia none. Gill trama of divergent hyphae, 4-7 fi broad. Cuti- 

 cle a well-defined, brownish zone of more or less erect, gelatinous hy- 

 phae, an ixotrichodermium; hyphae 2.5-4 fx broad. No hypodermium 

 evident. Pileus trama interwoven, more or less radially disposed. 

 Clamp connections present on the cuticular hyphae. 



Habit, Habitat, and Distribution — Gregarious to scattered, on 

 soil in mixed oak-pine and in deciduous woods, Tennessee, Michigan, 

 Oregon, and California, April-December. 



Material Studied — California: Collett, Butte Co., April 5, 1948. 

 Michigan: Smith 4957, 5088 (type, from Saginaw Forest, Ann Arbor, 

 Oct. 8, 1936), 6054, 15321, 15412. Oregon: Smith 9099, 9188, 9275. 



