Observation 182495: Ganoderma sessile Murrill
When: 2014-10-11
No herbarium specimen

Proposed Names

22% (2)
Eye3
Recognized by sight
16% (2)
Recognized by sight: Ganoderma lucidum group will generally have well formed stipes and a highly laccate surface looking wet even when dry. The only members of the G.lucidum group so far known to occur in North America are G.tsugae and G.oregonense. All other North American Ganoderma are distantly related to G.lucidum based on DNA evidence and belong in separate groups.
60% (2)
Eyes3
Recognized by sight

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Comments

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Check the spores.
By: MSchink
2014-10-16 18:08:04 PDT (-0700)

Ganoderma lucidum will have rough type spores, with prominent visible echinules. Based on morphology I suspect this would fit more appropriately into the G.resinaceum group which will have smoother spores with less prominent echinules. There is a lucidum look alike species in North America called G.curtisii that also has somewhat rough spores, however it can be distinguished by having a tan context with bands of dark melanoid material,and is more closely related to Ganoderma lingzhi genetically.

edit A more thorough set of references and description of what to look for in the spores.

I am using Steyaerts interpretation of rough vs smooth spores.You will see he explicitly makes note that smooth does not mean truly smooth but rather the echinulae are less prominent in resinaceum than in lucidum.

Species of Ganoderma and related Genera mainly of the Bogor an Leiden Herbaria. (Steyeart 1972)

Figure 6 shows clearly the differences between the spores, pg 94 discusses the differences.

Study of some Ganoderma species (Steyeart 1980)
pg 170 Further discussion on the G.resinaceum complex.
pg 183 discusses the distribution of Ganoderma species.

http://www.plosone.org/...

Figure 4 shows both G.lucidum and G.resinaceum spores, G.lucidum spores are clearly distinct.

The distinction of G.curtisii ( a North American taxon) as well as the Asian G.“lucidum” from European Ganoderma lucidum is well supported by genetic sequencing.

Species clarification of the prize medicinal Ganoderma
mushroom “Lingzhi” (2012)

http://www.tandfonline.com/...

Created: 2014-10-12 14:25:39 PDT (-0700)
Last modified: 2015-03-16 20:38:56 PDT (-0700)
Viewed: 152 times, last viewed: 2016-12-05 20:12:20 PST (-0800)
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