Observation 222280: Ganoderma resinaceum Boud.
When: 2015-11-07
Who: zaca
No herbarium specimen

Proposed Names

58% (1)
Eye3
Recognized by sight
61% (2)
Eye3 Eyes3
Recognized by sight: Spores appear to be of the smooth type.

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Eye3 = Observer’s choice
Eyes3 = Current consensus

Comments

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Thanks, MSchink,
By: zaca
2015-11-11 15:54:20 PST (-0800)

for the explanation. I’m convinced.

The maximum length
By: MSchink
2015-11-11 15:42:31 PST (-0800)

can vary quite a bit, and the spore sizes vary slightly from specimen to specimen. The average is far more important.

From a study of British specimens.
“G. resinaceum (Boud.)Pat.
Spores measure 9-11.5 × 6.2-8 (10.5 × 7.2)µm , Q =1.45”

Notice that your average is much closer to their average. It is not uncommon as well to discard the largest and smallest measurements.

G.lucidum is also pretty close to this range, though perhaps a bit larger, the main distinguishing feature is the smooth spores, G.lucidum as well as most other Ganoderma have a rough spore, with prominent speckles.See my observation 212603 for an example. But G.resinaceum and a number of closely related species have that smooth spore. Allowing for easy categorization.

Yes, the spores are smooth.
By: zaca
2015-11-11 14:59:20 PST (-0800)

Though I not very familiar with Ganoderma spp. I also thought about G. resinaceum. My concern was that the maximum lenght for the spores of this species (11 um) was exceeded, which made me hesitate.
Thanks, MSchink, for your proposal.

Spores added.
By: zaca
2015-11-11 10:51:00 PST (-0800)

Spores (see attached photos):
(9.9) 10.3 – 11.5 (11.9) x (6.5) 6.7 – 7.5 (7.8) µm
Q = (1.4) 1.45 – 1.6 (1.7) ; N = 29
Me = 10.9 × 7.1 µm ; Qe = 1.5

Created: 2015-11-09 07:39:35 PST (-0800)
Last modified: 2015-11-11 15:52:44 PST (-0800)
Viewed: 62 times, last viewed: 2016-12-04 14:48:03 PST (-0800)
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