BY D. McALPINE 703 



A-steriiia (uherculata. 



Fig. 5.— Under surface of leaf with black stain-like markings (nat. size). 

 Fig. 6. — Hypha showing tubercular branchlets ( x 540). 

 Fig. 7. — Asci and two separate olive-green sporidia ( x 540). 

 Fig. 8. — Mature sporidiuni, very dark brown ( x 1000). 



Plate XXVII. 



Meliola denticulata. 



j'ig. 9. — Coloui-less hypha3 passing into coloured with thickened wall 



( x 1000). 

 Fig. 10. — Apex of appendages, toothed and smooth ( x 1000). 

 Fig. 11. — Surface view of perithecium ( x 540). 

 Fig. 12. — Young perithecium originating as a branch from hypha, in 



optical longitudinal section ( x 1000). 

 Fig. 13.— Sporidia ( x 1000). 



Botrytis argillactct var. arictnniae. 



Fig. 14. — Fungus on bark (nat. size). 



Fig. 15.— Section of tubercle (nat. size). It looks black in section, and 



may be solid throughout or partially broken up into sclero- 



tioid bodies. 

 Fig. 16.— Section of small tubercle (uat. size and magnified). There is a 



central core of fine (whitish) fibres, an outer and inner layer 



of dark, dense, almost black fibres, and the rest is of a 



yellowish -brown. 

 Fig. 17. — Branching conidiophores ( x 540). 



Plate xxviii. 



Botrytis argiUacea var. avicenniae. 



Fig. 18. — Tri-radiate branching towards apex and apical conidium ( x 1000). 

 Fig. 19. —Detached couidia ( x 1000). 

 Fig. 20.— Sclerotioid bodies ( x 52). 



Mdiola dadotricha. 



Fig. 21. — Antler-like branching hypha, also septate, but the septa are 



concealed by the dark colour ( x 270). 

 Fig. 22.— Asci 4- and 8-spored ( x 145). 

 Fig. 23.— Sporidium ( x 1000). 



