Observation 195166: Ganoderma polychromum (Copel.) Murrill
When: 2014-12-29

Notes: Wow! A real treat! Possibly a Ganoderma sp. growing from the base of a live oak tree. Has anyone else heard/found something like this or am I in the wrong ballpark? I have the species collection, might be worth cloning/DNA testing, what do you all think?

Images

496670
496671
496672
496673
496674
496675
496800
Cross section as requested by Matt Schink. Also, over night white mycelium tufts were apparent, so I cut the base and rolled it into damp cardboard in an attempt to cultivate it.
496801
Cross section as requested by Matt Schink. Also, over night white mycelium tufts were apparent, so I cut the base and rolled it into damp cardboard in an attempt to cultivate it.
496802
Cross section as requested by Matt Schink. Also, over night white mycelium tufts were apparent, so I cut the base and rolled it into damp cardboard in an attempt to cultivate it.
496803
Cross section as requested by Matt Schink. Also, over night white mycelium tufts were apparent, so I cut the base and rolled it into damp cardboard in an attempt to cultivate it.
496804
496819

Proposed Names

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Eye3 = Observer’s choice
Eyes3 = Current consensus

Comments

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Microscopic observations
By: MSchink
2015-01-26 15:49:23 PST (-0800)

Hyphal system trimitic.

Hymeniodermis vera type, with numerous clavate elements.

The cutis elements were difficult to observe due to an excess of resin in this particular specimen. As such these measurements are a little rough.

44.4 [56.7 ; 71.6] 83.9 × 3.2 [4.6 ; 6.3] 7.6 µm
Q = 4.3 [9.4 ; 15.6] 20.7 ; N = 7 ; C = 95%
Me = 64.1 × 5.4 µm ; Qe = 12.5

78.29 x 4.53
74.92 x 4.03
57.51 x 4.69
65.80 x 5.44
63.28 x 5.67
60.12 x 6.46
49.02 × 7.20

Spores. Moderately echinulate. Measured from the inside wall.

7.5 [8.4 ; 9] 9.9 × 4.1 [5 ; 5.6] 6.5 µm
Q = 1.3 [1.6 ; 1.7] 2 ; N = 18 ; C = 95%
Me = 8.7 × 5.3 µm ; Qe = 1.7

7.80 x 5.23
8.89 x 5.25
9.75 x 6.05
8.83 x 5.03
8.85 x 5.68
7.55 x 4.72
9.27 x 4.64
7.82 x 5.35
9.31 x 5.69
9.37 x 6.77
8.06 x 3.77
8.76 x 5.16
8.58 x 5.36
8.43 x 5.41
8.67 x 5.57
8.22 x 5.49
9.31 x 4.93
8.67 x 5.35

DeShazer; Schink; cross section and ants
By: Joe Soeller (slephy)
2014-12-30 13:06:21 PST (-0800)

Darvin, observation #6826 looks quite unlike this Ganoderma, however the other two look similar in external appearance but the cross section is a bit different.

Matt, would you like me to mail you this section?

Funny to note, Darvin, your observation included an ant. When I extracted this Ganoderma, tons of ants came out with it.

Ganoderma on live oak
By: Darvin DeShazer (darv)
2014-12-30 12:33:09 PST (-0800)

All three of these observations are from the same tree, a coastal live oak in petaluma, Calif. The specimen in Ob#179414 is dried and available for DNA analysis; Herbarium # DD695

http://mushroomobserver.org/6826

http://mushroomobserver.org/9390

http://mushroomobserver.org/179414

Definitely
By: MSchink
2014-12-30 02:40:13 PST (-0800)

Definitely a Ganoderma, and definitely worth cloning and extracting DNA. I am interested in gathering sequences from California specimens to try to clarify the status of G.polychromum.

DNA
By: Erlon (Herbert Baker)
2014-12-30 00:38:23 PST (-0800)

Matt Schink might want a sample of this specimen. He will probably be around shortly to comment.

Created: 2014-12-29 18:27:37 PST (-0800)
Last modified: 2014-12-30 13:59:23 PST (-0800)
Viewed: 264 times, last viewed: 2016-11-06 16:03:23 PST (-0800)
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