INDIANA MUSHROOMS
Pisolithus tinctorius
Pisolithus tinctorius
Pisolithus tinctorius
Pisolithus tinctorius
Pisolithus tinctorius
Pisolithus tinctorius
Pisolithus tinctorius
Pisolithus tinctorius
                     Pisolithus tinctorius
Found mid-August. Pine and oak trees present. Sand and gravel soil;
Morgan-Monroe State forest. This interesting fungus produces tiny spore
sacks (peridioles) within the fruit body. These spores sacks disintegrate as the
fungus matures and spores are released as the fruit body also disintegrates.
Note fibrous rhizomorph (root-like structure).
The round spores of Pisolithus tinctorius have
curved spines
and measure 7-12 µ.
This is a mycorrhizal fungus that develops a symbiotic relationship
with plants and trees. Can grow to 20cm across, much larger than the
examples shown here.
Pisolithus tinctorius spores
Pisolithus tinctorius spores