GENERA AND SPECIES OF MUSHROOMS 



Panus stypticus ; astnngent panus. Plate XIII, Species 99. 



On stumps of deciduous trees in woods; in groups; autumn 

 and winter; astringent and puckery to the taste; phosphores- 

 cent in the dark; POISONOUS. 



Cap tough; resembHng a shell; kidney-shaped; tawny; 

 attached by a short lateral stem; small scales on the surface; 

 margin even or lobed; curved in when young; flesh watery- 

 white; yi to y^ inch broad. 



Gills narrow; thin; close together; tawny; connected by 

 veins on the under surface of the cap. 



Stem short ; marginal ; solid ; pale buff or dull- white near the 

 cap, darker near the base. 



Spores white; 1-3 by 2-4 microns in diameter. 



This small, inconspicuous species is common throughout 

 the temperate regions. It would hardly be collected for 

 food, even if well-flavored, because of its small size and 

 toughness. Murrill. 



The genus Paxillus 



Fungi belonging to the genus Paxillus are characterized by 

 gills which are easily and smoothly separable from the cap. 

 The spores are rusty-brown (ochraceous) . 



Species of Paxillus 



Paxillus involutus; involute paxillus (that is, paxillus 

 with the margin of its cap turned downward and in- 

 ward). Plate XIII, Species 100. 



On ground or decaying wood in open places or in damp 

 woods; August to October; edible. 



Cap compact; flesh tinged with gray; convex when young, 

 expanded and depressed at the center when mature; margin 

 curled downward and inward; nearly smooth; grayish-buff or 

 rusty-brown or yellowish; 2 to 4 inches broad. 



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