64 THE EVOLUTION OF CONTINUITY 



We may notice two examples of false tissue, and the first 

 is that occurring in Eurotium. In this mould the end of a 

 hypha becomes coiled in a close spiral forming what is called 

 the archicarp or female organ ; while from below it arise 

 several thin hyphal branches, one of which, the pollinodium 

 or male organ, curves over to enter the coiled archicarp and 

 fertilise its contents. The remaining branches wrap round 

 the archicarp and by repeated branching penetrate its coils 

 and fill it with matted false tissue. The fertilised archicarp 





ttJCUS. 



branch. 



Fig. 12. — The sexual process in Eurotium. (After Lowson.) 



produces small buds whose tips become cut off by septa 

 and form unicellular spore-sacs called asci. " The young 

 ascus has at first two nuclei. These fuse together, and then 

 by a process of free cell formation eight ascospores are formed 

 inside the ascus " (Lowson). (Fig. 12.) 



Here we have a sudden change to a higher form of 

 Continuity within the Individual, and it is to be noted that it 

 occurs in connection with reproduction. 



A more striking case is that of Agaricus campestris, the 

 common mushroom, where from the fine loosely matted 



