174 
peas Pers. 
M. fructigena, Pers. A very ‘destructive parasite to apples, 
Which under its ‘influence become spotted and unsaleable. 
M. pruinosa, Che. & Mass. On fading leaves of Caladium. 
Cylindrium, Bon. i 
C. Cordae, Saccardo. On dead oak leaves. 
C. flavo-virens, Bon. On dead leaves of oak and beech. 
C. elongatum, Corda. On dead beech leaves. 
Oidium, Link. 
O. farinosum, Cke. On leaves and young twigs of Pyrus Malus. 
An injurious fungus, causing the leaves to fall prematurely, con- 
sequently the fruit does not ripen properly. 
0. er Che. & Mass. On living leaves of Rivea hypocra- 
teriform 
0. monilioides, Link. On living leaves of Holcus lanatus. 
0. leucoconium, Desm. On living leaves of cultivated roses. 
0. Chrysanthemi, Rab. On living leaves of cultivated varieties 
of Chrysanthemum. 
0. pactolinum, Cie. On living leaves of Jasminum. 
CEPHALOSPORIEAE. 
Botryosporium, Corda. 
B. pulchrum, Corda. Overrunning stored Dahlia tubers. 
Oedocephalum, Preuss. 
0. Preusii, Saccardo. On dead leaves of Heuchera. 
O. sulphureum, Che. 4 Mass. On decaying rope. 
0. glomerulatum, Sacc. Ona heap of manure. 
Rhopalomyces, Corda. 
R. elegans, Corda. On decaying vegetable matter. 
Trichoderma, Pers. 
T. viride, Pers. On decaying wood, moss, &c. This is considered 
to be the conidial condition of Hypocre ea rufa, 
ASPERGILLEAE, 
Aspergillus, Micheli. 
A. glaucus, Link. On all kinds of damp or decaying plants. 
A. candidus, Link. On decaying plarits, fungi, &c. 
