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Created: 2008-08-12 07:13:34
By: Dimitar Bojantchev (dimitar)
Summary: Boletus sp, but did it turn blue?
This is a Boletus sp.
This would have been, an easy id had you made one or two additional steps. The five rules of collecting Boletes:
1) SPORE PRINT COLOR – please always make a careful observation of
that – this does the HEAVY LIFTING down to Genus for you. PINK,
CINNAMON, OLIVE, etc. Then you know whether’ you’re dealing with
Tylopilus, Leccinum, Boletus and so forth…
2) DISCOLORATION reactions – observe carefully
a) On sponge
b) On stipe
c) On context
3) TASTE – some Tylopili (mainly) are bitter. This can be a
huge factor when comparing similarly looking brownish/tan species.
4) MACROCHEMICAL reactions – you don’t need much. Just NAHO4 and
KOH do most of the heavy lifting in this group. Use them, make
notes and photos.
5) SLICE them – other than the context discoloration, in the case
of Gyroporus you may see a hollow stipe – that does your id right
there…
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