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RESEARCHES ON FUNGI 



and then, as Fischer 1 taught us, the gleba is surrounded by four 

 easily distinguished coats (Fig. 147, A), from without inwards as 





a 



Fig. 149. — Sphaerobolus stellatus. The apical part of 

 the peridium of a nearly mature sporoearp, highly 

 magnified, consisting of six layers : no. 1, mycelial 

 hyphae ; no. 2, a gelatinous layer ; no. 3, a pseudo- 

 parenchymatous layer ; no. 4, a layer of inter- 

 woven largely tangential hyphae ; no. 5, the palisade 

 layer, here pseudoparenchymatous ; and no. 6, a 

 thin layer of pseudoparenchyma surrounding the 

 gleba, g. Section prepared and photographed by 

 Leva B. Walker. Magnification, about 350. 



follows : (1) a gelatinous layer containing a network of hyphae with 

 much swollen walls, (2) a pseudoparenchymatous layer, (3) a fibrous 



that a rudimentary fruit-body (sometimes two) originates in its turn in the central 

 part (Innengeflecht) of the stroma. As the rudimentary fruit-body grows, it bulges 

 out from the substratum and ceases to be covered by the upper wall of the mycelial 

 sheet or cord and by the upper and lateral walls of the stroma. 

 1 E. Fischer, in Die nat. Pflanzenfamilien, loc. cit., p. 346. 



