190 Transactions British Mycological Soctety. 
NOTE. 
A DIE-BACK IN SUSSEX. 
Boughs of apple, Winter Pearmain and Lane’s Prince Albert, 
affected with a bark disease have been forwarded to the Ministry 
by Mr John Goaman, one of the Ministry of Agriculture’s 
Inspectors from the south-western, or Chichester, district of 
Sussex. This disease was considered by the growers to be 
causing a die-back and the trees have been cut back and the 
affected boughs burnt. The fungus present was in a pycnidial 
stage, the pycnidia globose, depressed, with a thick wall and 
set in a purplish mycelium, and with large hyaline spores of a 
Macrophoma type. 
The fungus corresponds with New Zealand specimens of 
Diplodia Griffon Sacc. & Trav. 
Diplodia Griffon Sacc. & Trav. Sacc. Syll. xx, p. 1228 (1911) 
and XXII, p. 994 (1913). 
Pycnidia parasitic, somewhat large, scattered or grouped, 
simple, or divided into loculi; spores for a long time hyaline, 
thick walled, elliptic oblong, somewhat irregular, with granular 
contents 20-30 p x I0-13 » becoming ovoid and ellipsoid, uni- 
septate, 22-25 w x 10-14 p, fuliginous and quite smooth. 
This fungus disease was first described from France (Diplodia 
sp. Griffon et Maublanc, Bull. Soc. Myc. France, Ig1o, p. 314, 
T. xiii et T. xiv) and occurs also in New Zealand as a bark 
parasite on apples. I am indebted to Mr Grove and Miss 
Wakefield for their assistance in identification. 
M.-L, ALCOCK, 
Ministry of Agriculture, 
Pathological Laboratory. 
