Plate XVII. — Figs. 6i, 62, 63, Exoascus mirabilis Atkinson [on P. angusti- 



folia Mat-shall) ; 66, 67, E. mirabilis Atkinson [on P. antericana iMar- 



shall) ; 64, (55, E. mirabilis var. tortilis Atkinson {on P.an- 



gustifolia Marshall). 



