SUBSECTION HYGROPHORUS 249 



Key to Series 



1. Carpophore white with golden granules or droplets on stipe apex and/or 



pileus margin 



(149. H. chrysodon is the only known species) Series Chrysodontini, below 

 1. Not with above combination of characters 2 



2. Pileus, stipe, and gills white to whitish before maturity 



Series Hygrophorus, p. 251 



2. Fruiting bodv more or less colored 3 



3. Disc of pileus cinnamon-buff, tan, or darker reddish brown 



Series Discoidei, p. 262 



3. Disc of pileus some other color 4 



4. Disc of pileus yellow to red Series, Aurei, p. 273 



4. Disc of pileus olive to gray to umber or gray-brown 



Series Olivaceoumbrini, p. 283 



149 



Hygrophorus chrysodon ( Fr. ) Fr. 



Epicr. Myc, p. 320. 1838 



Agaricus chrysodon Fr., Syst. Myc, p. 32. 1821. 



Limacium chrysodon (Fr.) Kummer, Fiihr. in Pilzk., p. 118, 1871. 



Illustrations : 

 Fig. 72. 



Atkinson, Mushrooms, Edible, Poisonous, etc., fig. 112. 

 Batsch, Elench. Fung., fig. 212. 

 Bresadola, Icon. Mvc, tab. 301. 

 Gillet, Champ. Fr., pi. 330. 



Giissow and Odell, Mushrooms and Toadstools, pi. 45. 

 Juillard-Hartmann, Icon. Champ., pi. 50, fig. 17. 

 Lange, Flora Agar. Dan. 5, pi. 164G. 

 Ricken, Die Blatterp., pi. 6, fig. 4. 

 Smith and Hesler, Lloydia 2, pi. 3. 

 Wakefield and Dennis, Common British Fungi, pi. 19, fig. 4. 



Pileus 3-8 cm broad, convex, expanding, subumbonate or obtuse, 

 white and unicolorous except for superficial numerous golden yellow 

 ("apricot yellow") noccose granules on the margin or over all at first, 

 viscid when moist, shining when dry, margin at first involute and white 

 floccose-tomentose. Context white, thick, soft; odor and taste not dis- 

 tinctive. 



Lamellae decurrent, white or with yellow powder on the edges, 

 intervenose, distant, moderately broad. 



Stipe 3-8 cm long, 6-12(18) mm thick, white, apex with yellow 

 floccules which may form an imperfect zone or ring, equal, viscid, 

 stuffed. 



Spores 7-9(10) X 3.5-4.5(5) /x, ellipsoid, often inequilateral, at 

 times curved at the apiculus, smooth, pale yellow in Melzer's reagent, 

 white in mass. Basidia 40-54 X 6-8 /x, 4-spored. Pleurocystidia and 



