248 



RESEARCHES ON FUNGI 



a further inspection of Table V, all the haploids were completely 

 diploidised by their diploid inocula. 



Table V. 



Results of inoculating Large Haploid Mycelia (1) with Diploid Mycelia 

 theoretically incompatible with them and (2) with Diploid Mycelia 

 theoretically compatible with them. 



It is to be noted that, in the illegitimate combinations (AB) X 

 {Ab)~\-{aB) and (Ab) X {AB)+{ab), the diploid myceha which were 

 produced by the conversion of the haploid myceha (AB) and {Ab) 

 developed at the periphery of these haploid myceha in a very 

 "patchy " manner (c/. Fig. 136), and not evenly as happens in a 

 legitimate combination such as (AB) X {AB)+{ab) or (Ab) X 

 {Ab)-\-{aB). The same phenomenon — " patchiness " in the pro- 

 duction of the diploid mycehum on the haploid — has been noticed 

 whenever such a diploid mycelium has been produced as a result 

 of an illegitimate union. It may be that " patchiness " is an 

 indication that the nuclei which move out of the diploid inoculum 

 into the large haploid mycehum are not entirely compatible with 

 all the nuclei of the haploid mycehum. 



The four experiments with illegitimate combinations recorded in 



