Hypochnicium geogenium

Corticoids, Crusts, Brackets, and any non-mushroom like fungi growing on wood
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Chris Yeates
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Hypochnicium geogenium

Post by Chris Yeates » Sat Oct 31, 2020 3:15 pm

I always personally treat the (confident) naming of a resupinate as a minor triumph. This was named on the basis of:
* Protruding cystidia visible under the dissecting microscope (see central image). These cystidia without septa or ornamentation, and with colourless to very pale yellowish contents in the living state.
* Thick walled, hyaline spores, non-amyloid, but cyanophilic (staining in Cotton Blue in Lactophenol).
* Spore shape and size.

Based on the above criteria it keys out quite straightforwardly. Interestingly the colour illustration in the "Swiss Book" - Breitenbach and Kränzlin Vol.2 (1986) looks nothing like my collection, presumably as it is older, dried and cracked. Looking just at that one would never arrive at a conclusion, though the line drawings are helpful. This was a classic example of collecting what looked like fresh, fruiting material and ignoring a lot of what one sees - advice I would give to everyone, whichever type of fungi they are interested in.
Hypochnicium geogenium 0a.jpg
"You must know it's right, the spore is on the wind tonight"
Steely Dan - "Rose Darling"

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