SUBSECTION HYGROPHORUS 251 



Washington: Smith 3303, 3357, 14828, 17624, 40586, 40943, 49138; 

 Stuntz 31431. Wyoming: Smith 35373, 35751. spain: Singer, Cabalunya, 

 1934. Belgium: Heinemann 1917. 



Observations — This is a widely distributed and easily recognized 

 species. We have not found H. chrysodon var. leucodon Alb. & Scliw . 

 which is said to be characterized by white instead of yellow granules. 

 H. chrysodon is very abundant at least during certain seasons in Cali- 

 fornia, Oregon, and Washington, but appears to be rare in Michigan, in 

 the Southeast, and in New York. 



SERIES HYGROPHORUS 



Subsection Candidi, Bataille, Flore Monogr. Hygrophores, p. 28. 

 1910. 



Characters as given in key to series, page 249. 



Key to Species 



1. Lamellae sinuate 150. H. eburneiformis 



1. Lamellae broadly adnate to decurrent 2 



2. Odor distinctly fragrant; pileus and stipe becoming pale dingy pinkish 



buff in age 152. H. cosms 



2. Odor not distinctive, if basidiocarp discolors 3 



3. Stipe typically short and thick (15-35 mm thick); pileus 5-14 cm broad 



156. H. ponderatus 



3. Stipe (3)5-10(15) mm thick, tapered downward to equal 4 



4. Lamellae brownish in age, when dried they become dark reddish 



brown 153. H. chrysaspis 



4. Not as above, gills merely dingv-ochraceous as dried 5 



5. Spores 10-14 X 6.5-7.5 ^ 155. H. albiflavus 



5. Spores 7-10 ^ long 6 



6. Pileus becoming yellowish in age and when dried the stipe with red- 

 brown punctate at apex 154. H. glutinosus 



6. Pileus remaining white and stipe not punctate with red-brown points 

 in age or when dried 151. H. eburneus 



150 



Hygrophorus eburneiformis Murr. 



Mycologia 30: 364. 1938 



Pileus reaching 6 cm broad, convex, umbonate to expanded and 

 irregular, white, smooth, slimy-viscid, margin undulate to lobed. Con- 

 text white, unchanging, thin, taste mild. 



Lamellae sinuate, moderately broad, distant, interveined. 



Stipe 4 cm long, 10-20 mm thick, with a satiny sheen, viscid, gla- 

 brous, subequal, hollow. 



Spores 7-9(10) X 4.2-5(6) /a, ellipsoid, at times somewhat irregu- 



