42 
ON THE DISEASES OF PLANTS. 
which when seen through a microscope are found to be little tufts of globules, 
standing on small stems of the same. This is called 3 
the Pencilled Mouldiness (Aspergillus penicillatus (3). 
The specimens are liable to it at all seasons, unless 
kept properly dry. 
Bramble Blight {Puccinia rubi, Decand. (4). 
This is found only on the bramble leaves ; the seed- 
vessels with four or five cells, not pointed as in the rose 
blight, and the foot-stalks not so much thickened. 
There is also on brambles a bright yellow powder ; this is another species of fungi 
the Uredo ruhorum. 
(5) Gooseberry Blight (^cidium grossularice, Decand.), found only on 
gooseberry leaves. The upper surface of the leaf 5 
opposite the fungus is of a fine red. The seed- 
vessel splits with an indented border of yellowish 
white teeth. 
(6) Coltsfoot Blight (^cidium tussila- 
ginis, Persoon), found on coltsfoot leaves, and 
on no other plant or tree. The seed vessel very 
short, bursting with an indented border of white 
teeth rolled outwards. The seed pink-orange. 
(7) Barberry Blight {^cidium berberi- 
des, Persoon), found on barberry leaves or 
flowers, and on no other plant or tree. The 
seed-vessel without a foot-stalk, one-celled, and bursting with an indented 
fine orange. 
border. 
