Agaricaceae 



Eussuia. sylvania, New Jersey, in pine and mixed woods. August to October. 

 Mcllvaine. 



The odor and taste of R. nauseosa are misnamed, therefore the plant. 

 They are heavy at times, when the plant is wet or old, as is the case 

 with R. fcetens, but they are always of cherry bark. Both odor and 

 taste disappear in cooking. The species is as good as any Russula of 

 its texture. 



H. vitelli'na Fr. vitellus, yolk of egg. Pileus i in. broad, uni- 

 colorous, light yellow then wholly pallid, somewhat membranaceous, at 

 length tuberculoso-striate , somewhat dry, disk very small, slightly fleshy. 

 Stem thin, scarcely exceeding I in. long, 2 lines thick, equal. Gills 

 separating-free, equal, distant, rather thick, connected by veins, saffron- 

 yellow. 



Pretty, very fragile, strong-smelling, mild. Fries. 



Spores 7-8/u, diameter Massee. 



West Virginia, New Jersey, Pennsylvania, August to October. In 

 pine and mixed woods, July to October. Not common in number. 



This pretty species has a cherry-bark taste and smell like R. fcetens, 

 though not so offensively heavy. It is not poisonous. A small piece 

 of it will affect a whole dish of other Russulae. 



R. chamseleonti'na Fr. changing color like a chamaeleon. Pileus 

 1-2 in. broad, thinly fleshy, soon flattened, sometimes oblique .with a 

 thin, separable, viscid pellicle, which is at first flesh-color, then pres- 

 ently changing color, becoming yellow at the disk and at length wholly 

 yellow, margin even, then slightly striate. Stem as much as 3 in. long, 

 but thin, somewhat hollow, slightly striate, white. Gills more or less 

 adnexed, thin, crowded, equal, narrow, somewhat forked, light-yellow- 

 ochraceous. 



Mild, inodorous, very fragile. Pileus rosy blood-red, purplish lilac, 

 etc. Sometimes even at the first yellowish at the disk. Fries. 



Spores globose, ochraceous, 7-8/* diameter Massee. 



In pine and in mixed woods. August to October. Mcllvaine. 



The change in color of the cap which gives name to this species is 

 not remarkable. Most species of Russulae are sensitive to light. An 

 otherwise highly colored cap will be almost white when a leaf adheres 

 to it. If in youth it grows under dense shade it will be very much 



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