Observation 25228: Gerronema Singer

This small group of fungi were found growing on a fire damaged dead log in a semi wet area, (although not normally wet in normal weather conditions). The caps start as convex and become concave till deepening in the centre with maturity.Caps varied in size from 5mm-30mm approx. This area is a coastal eucalypt reserve with some tea tree and small needle pines and the forest floor is sandy loam. The darkened cetres are well displayed.


Copyright © 2009 Ian Dodd Kundabung NSW Australia
Copyright © 2009 Ian Dodd Kundabung NSW Australia

Proposed Names

40% (4)
Recognized by sight
38% (6)
Eye3 Eyes3
Recognized by sight

Please login to propose your own names and vote on existing names.

Eye3 = Observer’s choice
Eyes3 = Current consensus


Add Comment

Thanks Deb

decurrent-ish gills
By: Debbie Viess (amanitarita)
2011-03-29 10:42:09 PDT (-0700)

I’d go with Gerronema, Ian. Just put a question mark at the end! It’s a better designation than just fungi, but allows wiggle room for better IDs in the future.

Not sure how to tag the name on this Fungi now!

After the recent comments would someone like to name the fungi for me, please, or would it be preferrable to replace the naming with “Fungi” Many thanks, kk

By: walt sturgeon (Mycowalt)
2011-03-28 13:13:32 PDT (-0700)

I think has decurrent gills.

as in the case of
By: Danny Newman (myxomop)
2011-03-28 10:54:31 PDT (-0700)


I’ll again draw attention to the question of whether gill depth and distancing are requisite (or at least frequent) characteristics of Gerronema. C. eucalyptorum has a very shallow gill profile and close spacing.

Don’t think so…
By: Christian (Christian Schwarz)
2011-03-28 09:27:16 PDT (-0700)

C. eucalyptorum as pictured here:
has a less radially streaked cap, different colors, and a less scurfy stipe… In fact, it looks like a Callistosporium in the modern sense…


Noah, Dark mantle centres had me stumped. What do you think about Collybia eucalyptorum? (Thanks for coming on board. Much appreciated.)

looks sorta like a Gerronema
By: Noah Siegel (Noah)
2009-09-14 04:46:13 PDT (-0700)

Created: 2009-09-14 03:39:37 PDT (-0700)
Last modified: 2011-03-29 10:38:39 PDT (-0700)
Viewed: 166 times, last viewed: 2017-06-29 17:00:10 PDT (-0700)
Show Log