Pleurotus ostreatus 



Common name: Oyster 

 mushroom 



Edibility: Choice; flavor 

 suggests oysters to some. 



Description: This shelflike 

 mushroom grows directly 

 from woody material. A sym- 

 metrical cap and stem may 

 be produced when the mush- 

 room grows from the top of 

 logs. 



Oyster Mushroom. Pleurotus ostreatus. Pme Ranger District, 

 Wallowa-Whitman National Forest. 



Habitat: They are not as common in the Blue Mountains as in western Oregon. In the 

 Blue Mountains, most fruiting is from hardwoods, especially cottonwoods (probably 

 also aspen) in the relatively restricted communities where these species occur. Mush- 

 rooms fruit in both summer and fall. 



Uses: Mainly local consumption by a few collectors. Some collecting by professional 

 pickers are made when requested by commercial buyers to fill an order. 



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