MUSHROOM GROWING 



branous veil, the lower surface of which is 

 covered with soft frosty scales; (2) the red- 

 brown to gray-brown pileus, paler gills, 

 and the enlarged lower part of the stem. 

 It has been cultivated, but requires more 

 completely fermented compost, a higher 

 temperature, and may not come into bear- 

 ing in several months. It is also less 

 gregarious and less prolific. It deserves 

 further extended trial under special condi- 

 tions. The spawn grows vigorously in the 

 usual cultures and also in bricks. 



Agaricus placomyces is a woodland spe- 

 cies, found from early summer until late 

 fall (Plate VII, a). As the name implies, 

 the cap is large, flat, and thin. It appears 

 smoky above from the presence of numerous 

 small, dark scales, more closely aggregated 

 near the center. The veil is double, like 

 that of A. arvensisy but not so stout, and the 

 base of the stem is enlarged. This species, 

 like A. fabaceus, is readily distinguished 

 from the usual cultivated types. The writer 



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