GROWING GOURMET - Anto2ni.it

110 THE STOCK CULTURE_LIBRARY
Figure 89. Quasi-rhizomorphic and cottony mycelia.
Figure 90. Zonate mycelium.
Zonations can also be a function of the natural,
circadian cycles, even when cultures are
incubated in laboratories where the temperatures
are kept constant. Growth occurs in
spurts, creating rings of growth. This feature
is commonly seen in species of Ganoderma,
Hypholoma and Hypsizygus.
5. Matted or app ressed: This type of mycehum
is typical of Reishi (Ganoderma lucidum)
after two weeks of growth on 2% malt-extract
agar media. So dense is this mycelial type that
a factory-sharpened surgical blade can't cut
through it. The mycelium tears off in ragged
sheaths as the scalpel blade is dragged across
the surface of the agar medium. Many species
develop matted mycelia over time, especially
the wood rotters. Cultures that mysteriously die
often have mycelium which appears matted but
whose surface is flat and highly reflective.
6. Powdered: This form of mycelium is best
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