Disease of Greengage Trees. 
2 I t 
tr. ,v. 
hyp. 
hyp.. 
Fig. 3. Dermatella pyunastri Pers. A, conidia from a naturally formed 
pycnidium in glycerine. B, young asci and paraphyses in lactophenol and 
“ Bleu coton G 4 b." C, ejected ascospores. D, germinating ascospores killed 
in chrom-acetic acid and stained in Heidenhain’s iron-alum haematoxylin. E, F, 
mycelium in the wood, stained in methyl green and Congo red ; hyp., hyphae ; 
g.,gum; tr., tracheid ; v., vessel ; med. r., medullary ray. G, mycelium in 
the wood breaking up into oval bodies ; stained in methyl green and Congo red. 
H, ascospores germinating on grape-juice agar. J, conidia from pure cultures. 
A, G, J, x 1200 ; C, D, H, x690; B, E, F, x430. 
