74 
interesting and useful investigation to determine the various 
diseases to which the Native Oranges and Lemons of Queensland 
are subject. In Professor Penzig's magnificent work with accom¬ 
panying plates, constituting the Annals of Agriculture for 1887, 
and published for the Italian Department of Agriculture, no less 
than 190 different species of fungi are recorded as being found in 
Italy on Citrus trees, although, of course, a number of these are 
purely saprophyic. 
So widespread is the demand for technical instruction at the 
present time, that it is customary, even in agricultural journals, 
to explain scientific terms, and an attempt is made here to make 
the meaning clear of the more commonly occurring terms neces¬ 
sary for brevity and exactness in a technical description. 
I. FUNGI ON FRUITS. 
1. Capnodium citricolum. 
2 Eurolium herbariorum. 
3. Pyrenochaeta aurantii. 
4. Mon ilia rosella. 
o. Aspergillus glaucus. 
6. Penicillium glaueum. 
7. Penicillium italicum. 
8. Ovularia aurantii. 
9. Ovularia citri. 
10. Cladosporium bruuneo-atrum. 
11. Cladosporium furfuracoum. 
12. Cladosporium subfusoideurn. 
13. Sporodesmium griseum. 
14. Coniothecium scabrum. 
lo. Fusarium epitbcle. 
16. Phonut citricarpa. 
17. Phoma omnivora. 
18. Splneropsis citricola. 
19. Diplodia citri col a. 
20. Septoria depressa. 
21. Bacteriosis. 
1. SOOTY MOULD. 
( Capnodium citricolum , Me Alp.) 
Forming black soot-like incrustations, pooling off as a thin 
membrane, often covering entire surface of leaf, also on fruit and 
branches. 
Hyphae creeping, colourless to pale green, copiously branched, 
septate, 6-8 /l/. broad, intertwining and forming a pavement of 
cells, with ascending short simple septate branches. 
\ 
