When: 2011-04-03

Collection location: Sintra, Portugal [Click for map]

Who: zaca

No specimen available

This specimen was growing isolated in an old concrete wall, now dilapidated and invaded by vegetation, which surrounds a property. When I saw it I was immediately reminded of a species that found a couple of months ago -Plectania rythidia.
Both the macroscopic and microscopic features that I managed to get match with this species originating from Oceania: spores of ellipsoidal shape, as it streaked across, with an average size of 21.8 – 24.9 × 10.1 – 11.8 µm (Qe = 2.2, N=52), paraphyses very long and thin. Only habitat (at first sight) does not coincide, since I do not remember having seen nearby trees of the genus Eucalyptus with which this species is normally associated.

Species Lists


Removing moss the subiculum becomes visible.
Septate hyphae of the subiculum.

Proposed Names

87% (1)
Recognized by sight
Used references: nzfungi
Based on microscopic features: See attached photograps

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= Observer’s choice
= Current consensus


Add Comment
By: Sporulator
2011-04-10 08:15:12 CEST (+0200)

I am not an expert in Sarcosomataceae, but according to the microscopic characteristics, I think it is Plectania rhytidia. There are two other quite similar looking species: Plectania mediterranea and Plectania zugazae:



What is interesting to me, is the nutrient-poor substrate (concrete wall covered by moss). I wonder if that species is maybe a saprophytic AND (optional) mycorrhizal fungi.

Dear Roberto,
By: zaca
2011-04-09 22:43:02 CEST (+0200)

I have described the facts. I can say nothing about what is beyond my scope of observation, I can only presume. Did you found anything wrong with the identification?

By: Sporulator
2011-04-09 18:44:56 CEST (+0200)

Interesting substrate! I wonder if the mushroom absorbs nutrients from the concrete wall too (Calcium, Iron, Sulfates) ?

Created: 2011-04-09 17:13:16 CEST (+0200)
Last modified: 2011-04-09 17:13:18 CEST (+0200)
Viewed: 161 times, last viewed: 2019-08-29 04:13:17 CEST (+0200)
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