496 THE SOOTY MOULD OF CITRUS TREES, 



Plate xxvii., figs. 10 a-d ; figs. 11 a-b ; figs. 12 «-/. 



Fig. 10. — Asci with paraphyses, one with basal cell to left (figs, a-d x 540). 



Fig. 11. — Two sporidia detached. 



Fig. 12. — Asci oontaining 4-8 sporidia ; the first contained colourless 

 sporidia, the next two pale green sporidia, and the remainder 

 were brown and mature, only the last one of the group being 

 colourless ; paraphysis (fig./) also shown. 



Plate xxviii., figs. 1.3 ct-^j. 



Armadale specimens — 

 Fig. 13. — Colourless hyphse showing their varied forms, together with 

 gonidia, continuous or 1- to 2-septate (figs, d and « x 540). 



Plate xxix., figs. 14 a-h; figs. 15 a-m ; fig. 16 ; figs. 17 a-h ; figs. 18 a-c. 



Fig. 14. — Quadrate colourless gemnife (fig. b x 540). 



Fig. 15. — Various forms of coloured hypht« and gonidia (fig. ax 540). 



Fig. 16. — Greenish-brown cluster of cells germinating. 



Fig. 17. — Mulberry -like gemmae. 



Fig. 18. — Spores isolated and connected, large and small. 



Plate xxx., figs. 19 a-l ; fig. 20; figs. 21 a-c; figs. 22 a-i. 



Fig. 19. — Antennaria-forms with spores and portion of netted wall (figs. 



a-d X 540 ; figs, e-i and k x 270). 

 Fig. 20. — Immature form of antennaria ( x 540). 

 Fig. 21. -Immature perithecium (fig. «. xl45) and asci, sl.owing origin of 



latter from chain of colourless cells. 



Kew specimens — 

 Fig. 22. —Colourless hyphfe and gonidia. 



Plate xxxi., fig. 23 (ten figures); fig. 24 (six figures) ; figs. 25 a-b ; fig. 

 26 ; figs. 27 a-c ; figs. 28 ab; figs. 29 a-b ; fig. 30 ; figs. 31 a-b. 



Fig. 23. — Quadrate gemma; with triradiate hyphse shown to originate from 



a single cell. 

 Fig. 24. — Brown hyphje and gonidia. 

 Fig. 25. —Glomerulus (fig. a x 270) and spores. 



Burnley specimens — 

 Fig. 26. — Quadrate colourless gemmte ( x 270). 

 Fig. 27. — Pycnidia and pycnospoi'es (fig. a x 52 ; fig. 6 x 97). 

 Fig. 28. — Pycnidium ( x 145) and pycnospores more enlarged. 



