Observation 198993: Polyporales sensu lato
When: 2015-02-12
0 Sequences

Dark brown (Polypore?), growing from eucalyptus semi rainforest embankment. Conditions had been wet and presently misting rain. A great deal of the fungi found have not been loaded due to deteriorated condition due to the wet conditions and the after effects. This fungi seems to be also showing some effects over a small area on the underside, from the wet and humid conditions.

Proposed Names

29% (1)
Recognized by sight
61% (2)
Eye3 Eyes3
Recognized by sight
57% (1)
Recognized by sight: Suggested by Heini Lepp (added by kk)

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Eye3 = Observer’s choice
Eyes3 = Current consensus


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Comment Courtesy Heino Lepp.

Hi Ian

I’d say it’s a species of Coltricia. The fruitbody has a low density. The tissue turns black immediately in KOH. The spores are smooth, yellow-brown, ellipsoid or ellipsoid with one flattened side and measure 7.2-8.8 × 5.6-6.8 micrometres, no change in Melzers. I could find only simply septate hyphae, many of which didn’t re-inflate well. They are yellow-brown to rusty brown in KOH, except for hyaline areas near their apices – so giving that very pale colour to the pore surface as your photos show.

Looking at your in situ photo of the upper surface, I get the impression of either an irregularly roughened surface or tufts of hairs, very waterlogged. The dried specimen shows what could be flattened tufts, now ‘glued’ down. In G.H. Cunningham’s 1965 monograph, Polyporaceae of New Zealand, there are two Coltricia species with “coarse, strigose tufts of hairs” – Coltricia strigosa and Coltricia oblectans. Cunningham recorded the latter for Australia and in a later paper Leif Ryvarden, who’d examined the type specimen, considered Coltricia oblectans to be just a hirsute variant of the cosmopolitan Coltricia cinnamomea. All that’s just food for thought, and a definitive answer will have to wait until I check out the literature about Coltricia species and carry out a detailed study of your specimen.



Created: 2015-02-16 19:01:01 EST (-0500)
Last modified: 2015-06-23 20:21:50 EDT (-0400)
Viewed: 48 times, last viewed: 2017-06-19 22:26:40 EDT (-0400)
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