GROWING GOURMET - Anto2ni.it

310 GROWTH PARAMETERS
Description: Cap 5-15 cm. broad, convex at
first, soon broadly convex, expanding to
plane, and typically deeply depressed in the
center. Mushrooms beige-tan at first, becoming
dingy brown with time, sometimes with a
hint of blue, becoming light beige tawny in
age. Margin even at first, often irregular in
age. Gills dingy, decurrent, broad, running
deeply down the stem. Stem short or sometimes
absent.
Distribution Limited to the British Isles,
known from England and Scotland, but not yet
reported from Ireland.
Natural Habitat: Preferring Elms (Ulmus
species) stumps and logs.
Microscopic Features: Spores pale pinkish lilac,
oblong and narrow, measuring 12-14 x 4-5
p. Otherwise similar toP ostreatus.
Available Strains: Strains are available from
some British, European and American culture
libraries.
Mycelial Characteristics: White, longitudinally linear, cottony, aerial fast growing and classically
OysteresqUe. Soon after colonizing a petri dish of MYPA, the mycelium tears off in thick sheets.
Fragrance Signature: Sweet, pleasant, slightly anise-like,
virtually identical to P. ostreatus.
Natural Method of Cultivation: I know of no one purposely growing this mushroom outdoors.
However, given its close affinity to P. ostreatus and that it is native to Elm stumps, this mushroom is
likely to produce prodigiously using the Natural Culture techniques described in this book.
Recommended Courses for Expansion of Mycelial Mass to Achieve Fruiting: Transfer cultures
from nutrifled agar media into sterilized water and blend in a high speed stirrer for several seconds.
This liquified mycelium then inoculates sterilized grain. Once colonized, grain spawn can be introduced
directly into pasteurized straw or sterilized sawdust.
SuggestedAgar Culture Media: MYA, MYPA, PDYA or OMYA.
1st, 2nd and 3rd Generation Spawn Media: Grain spawn for the first two generations, hardwood
sawdust spawn for the final stage.
Substrates for Fruiting: Hardwood sawdust, cereal straw,
cottonseed hulls, sugar cane bagasse, coffee
wastes, paper
and many other materials. This mushroom will probably grow on
many more substrate materials given modest Figure 279. P. euosmus truiting from pasteurized
wheat straw.
experimentation.
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