Observation 214297: Ganoderma curtisii (Berk.) Murrill

When: 2015-08-28

Collection location: Tucker, Georgia, USA [Click for map]

Who: GP Van Eron (reishiTea)

Specimen available

found growing on root structure of white oak

Proposed Names

83% (1)
Eye3 Eyes3
Recognized by sight: Location, pore structure, fruiting body

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Eye3 = Observer’s choice
Eyes3 = Current consensus


Add Comment
By: GP Van Eron (reishiTea)
2015-08-29 12:00:52 CDT (-0500)

I do see the difference in pore length and dividing line in observation 213456. I will let you know if i come across anything similar on new finds.

By: Matthew Schink (MSchink)
2015-08-29 09:43:28 CDT (-0500)

This is Ganoderma curtisii. You can see the dark laccate lines directly above the pores. These occur in other Ganoderma as well, but are useful in this case for distinguishing between G.curtisii and G.ravenelii.

Check out my observation, 213456. It shows the first sample of G.ravenelii I have been sent, notice the lack of those bands, it also has longer spores with a finer echinulation than G.curtisii.

Thank you, always good to have more data points.

Additional Photos Added
By: GP Van Eron (reishiTea)
2015-08-29 01:09:52 CDT (-0500)

Excellent, this is why i aimed to be active on this site. I have been collecting these for years but I feel there is still a lot of ambiguity around exactly what G. Curtisii is and basically the majority of Ganoderma varieties for that matter. So i really applaud people like you making headway.

Please let me know if any additional pictures are needed. This was found at a different location than my pictures last week. In late summer / fall i seem to be a magnet for these guys (or maybe vica-versa).

Cross section
By: Matthew Schink (MSchink)
2015-08-29 00:10:51 CDT (-0500)

Can you include a cross section? G.curtisii should have visible dark lines, while a very similar G.ravenelii lacks these.

Recently I was able to determine that G.ravenelii is a valid species and worthy of some attention so now I am curious how widespread it may be. Your collection has an unusual stipe attachment.

Created: 2015-08-28 23:34:59 CDT (-0500)
Last modified: 2017-01-13 16:33:23 CST (-0600)
Viewed: 59 times, last viewed: 2018-04-08 14:36:32 CDT (-0500)
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