Diatrype disciformis (Hoffm.) Fr.

Order Hypocreales continued:
The most economically important of the
nectriaceous anamorphs are certain Fusarium
specie), many of which cause destructive wilt
diseases of higher plants, or produce mycotoxins.
Gibberella also has Fusarium anamorphs, which
are producing the reddish pigment seen in the
picture
The lower picture shows Gibberella (dark) and its
Fusarium anamorph (reddish-orange) growing
together on a corn cob.
One species of Gibberella causes a disease of rice
called 'foolish seedling' in which seedlings grow
too rapidly and consequently fall over. The active
principle, a plant growth hormone called
gibberellic acid, has been extracted and is now
widely used to stimulate plant growth.
Order Hypocreales continued:
TEXT
Hypomyces lactifluorum, an orange fungus which,
like other species of the genus, parasitizes
basidiiomycetes, in this case the agaric genera
Lactarius and Russula...
Left: The ostiole is the opening of the perithecium.