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Abstract: Our concern with the problem of the cultivation of Pleurotus ostreatus arose from two dissimilar interests. One of these was the preservation of wood from decay by wood-rotting fungi; the other was the search for an economic use for waste sawdust. It is not surprising that these two interests led us to investigate the possibility of utilizing waste sawdust as a medium for cultivating edible higher fungi which normally grow on wood. While we arrived at our proposals quite independently, an examination of the literature shows that we were neither alone nor the first to entertain such ideas. In his discussion of Pluteus cervinus, Krieger (1) states "in view of the steadily decreasing supply of horse manure, used in the cultivation of the common meadow mushroom, this sawdust inhabiting plant may help to prevent a dearth of cultivated edible mushrooms. The disagreeable flavor of the fresh plant is destroyed in cooking." (One author of this paper who has eaten Pluteus cervinus grown on sawdust cannot agree that the flavor after cooking is agreeable.)
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