AGARICUS. 



461 



living stems of silver tir, beech, etc., and on felled wood.' In 

 the forest, on newly erected piles of firewood, the yellow stools 

 may frequently be found in every stage of development growing 

 from the cut billets, while they arel especially numerous on the 

 rotting useless timber left lying. ' -VIn cellars or other moist 



Fia. 290.— .-(f/oiicu.? adi/WKUx. Destruc- 

 tion of Kir-wood. The deeply-corroded 

 cross-fissures contain white mycelium ; the 

 remainder of the wood is vellow. (v. 

 Tubeuf phot.) 



tion of Kir-wood. Later st.ige. The 

 corroded fissures no longer contain my- 

 celium. (V. Tubeuf phot.) 



chambers, the sporophores may be abundantly produced till 

 Christmas, but out-of-doors, August is the time of fructification. 

 The mycelium forms felted masses under the bark or in cracks 

 of the wood, and thence the sporophores arise as little pale- 

 yellow buttons, which gradually unfold and become differentiated 

 into cap and stalk. While quite young, they show tlie darker 



1 Previous to the publication of v. Tubeuf s investigation the fungu.s li;ul only 

 been observed on living beech and felled wood. 



