40 



THE LARCH CANKER 



same cushions as very young apothecia. They consist of 

 a ramifying series of cavities nearly filled with hyphae 



FIG. 18. Dasyscypha calycina, reproductive organs : A, aaci and 

 paraphyses ( x 430) ; a, ascus ; p, paraphysis ; B, spermogonia ( x 430) ; c, 

 spermogonia, showing escape of spermatia ( x 430) ; D, spermatia ( x 1,000). 



radiating towards the centre. These fine hyphae abstract 

 from their apices numerous spermatia, small slightly elon- 

 gated cells (about 1'5 X 1 n), which remain for a consider- 



