One of the most interesting local Agaricus is the Victorian brown-capped red stainer.
The most common variant is a dense, thickly scaled Agaricus species with brown to occasionally almost purple thick scales on its cap. These scales rarely appear darker in the middle, but rather remain consistent in colour and density right to the margin of the cap. The cap reaches a maximum diameter of about 10cms.
The veil is unremarkable and rarely forming more than a ring when hanging as a skirt.
The gills and margin of this species stains mildly red when damaged. When sliced the flesh also stains red above the gills and at the base of the stipe/stem.
While DNA sequencing places this mushroom within Agaricus section Sanguinolenti which its red staining probably supports (this section includes Agaricus silvaticus) , it is quite distant to even its closest relatives – 4% away from bohusii and amicosis.
This is a quality edible Agaricus – up there with bitorquis in terms of strong classic Agaricus flavours.
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A second variant – that is 1% away from this species according to BLASTn – which may or may not be significant – is a variant/phenotype that is found under Pine radiata and stains red or brown and appears to have a more pronounce umbo:
Exciting news! What is the next step from here?
Hi Andrew. Good question. I guess one day a taxonomist might describe and publish them. Until then I guess we can call them Agaricus ‘blusher’ or sonething 🙂
Where do you get the DNA testing done?
Via a friend.
Are they all edible or contain high % of phenol?
These are very close to several species of Agaricus that are quite some distance phylogenetically from those Agaricus that contain phenol. They do not contain phenol compounds.
Hi Jonathon.
Is there a chance for DNA testing of my mycelium?
If yes how much I need to pay for test?
Which mycelium?
I have some mycelium I extracted from different sources. I believe it may belong to porcini, Not sure if it is what I believe it may be or could be contaminant.
Before I start spreading it on the grain, I would like to be 100% sure that it is real thing.
Yes it’s possible to sequence mycelium. Did some a few weeks ago. If you want you can contact us here.
https://www.facebook.com/groups/335752070533437/
I’ve been occasionally finding a red staining Agaricus in the Barossa region of SA around native species after rain in milder weather – a great tasting, flavoursome mushroom. I love it but unfortunately so do the slugs and bugs!
haha that can happen – survival of the fastest!