Underside smooth or wrinkled/roughened <Stereum etc>


 

In essence the underside of a fruitbody in this sub-group is smooth, though there may some wrinkles or occasional warts.

 

Most sightings of such fruitbodies will belong to the genus Stereum.

 

In that genus the effused-reflexed (or sheet+shelf) growth form is common. Such a fruitbody starts its development as a flat, sheet-like growth on a downward facing surface (e.g. the lower side of a leaning trunk or of a fallen branch lying on the ground). After a while the upper edge of this sheet-like growth turns out from the wood to form a horizontal shelf.

 

In some effused-reflexed Stereum species the shelf may curve downwards and, in those species with small fruitbodies, the fruitbody may resemble an upside down cup, its side attached to the wood and you may at first look for them amongst the cup-like fungi. However, all species of Stereum will be put here and there is a warning to that effect in the overview of the cup-like fungi.

 


Underside smooth or wrinkled/roughened <Stereum etc>

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Discussion

Heino1 wrote:
20 Dec 2024
The smooth (rather than pored) underside makes this a species of Stereum - with a nice growth of alga on it.

Stereum sp.
JTran wrote:
17 Aug 2024
Apologies for the mistake in the original suggestion - I initially did not notice the hairs

Xylobolus illudens
Heino1 wrote:
17 Jun 2024
There are other fungi that can look similar when viewed from the upper side. Certainly a view of the upper side is always useful but in this case it happens that the underside carries much more information. In some of the fruitbodies you can see a bit of the smooth pinkish/purple underside - which, combined with the view of the upper side, leads to the species. Very nice photos of such a mass of fruitbodies, still in prime condition.

Xylobolus illudens
Teresa wrote:
1 Jun 2024
Stereum sp

Xylobolus illudens
Heino1 wrote:
31 May 2024
The second photo shows immature fruitbodies growing through a mass of dead grass stalks and the final photo shows a closer view of the undersides of several fruitbodies that have fused together.

Podoscypha sp.
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