The bread mold fungus.

Bread mold fungus

The bread mold fungus.

A bread mold fungus germinating

Bread mold fungus spore germinating

A bread mold fungus germinating

Illustrated are grapes ruined by black rot.

Rotted Grapes

Illustrated are grapes ruined by black rot.

"A Piece of Bread upon which One of the Common Molds, known as <em>Mucor</em>, is growing." &mdash; Blaisedell, 1904

Mucor, a common mold

"A Piece of Bread upon which One of the Common Molds, known as Mucor, is growing." —…

The mummies that carry the brown-rot fungus over winter.

Brown-rot mummies

The mummies that carry the brown-rot fungus over winter.

Brown-rot, healthy peach above, diseased below

Healthy and diseased peaches

Brown-rot, healthy peach above, diseased below

Illustration of a potato infested with Peronospora infestans also known as 'potato-rot' observed from a microscopic level.

Potato rot

Illustration of a potato infested with Peronospora infestans also known as 'potato-rot' observed from…

Spore of a bread fungus mold

Bread fungus mold spore

Spore of a bread fungus mold

Inside of the broken limb, showing the decay that entered.

Inside the tree limb

Inside of the broken limb, showing the decay that entered.

A tree, which has been blown over due to a rotten trunk

A tree, blown over

A tree, which has been blown over due to a rotten trunk

The decayed hole where a limb was removed. The wood-destroying fungi caused the tree to break.

A hole in a tree

The decayed hole where a limb was removed. The wood-destroying fungi caused the tree to break.

A long stub left in pruning. The wound cannot heal. The tape shows how far the trunk is hollow. The tree will soon blow over.

Stub of a limb of a tree

A long stub left in pruning. The wound cannot heal. The tape shows how far the trunk is hollow. The…