Observation 73128: Ganoderma oregonense Murrill
When: 2011-08-03
No herbarium specimen
0 Sequences

Thinner sporocarp than usual(What I previously thought was possibly antlered form) fruiting from a fallen Hemlock(Tsuga heterophylla).
3rd. image shows pore size per mm.
Temp: 88 sunny.

Proposed Names

95% (4)
Eye3 Eyes3
Recognized by sight: 3 pores per MM indicates G.oregonense.

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Eye3 = Observer’s choice
Eyes3 = Current consensus


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By: ndoll
2011-08-28 17:35:12 UTC (+0000)

The antler form is comparable to how some gilled mushrooms form “aborted” basidiocarps. And, aborts generally do not produce basidio-spores.

Antlers can occur in nature under the circumstance you described, having high levels of carbon dioxide. I have examined antlers (of Ganoderma curtisii) that were extracted from a site at 90 meters underground. The antlers measured so long they reminded me of a Salvador Dalí sculpture, or surreal. They measured about 42 centimeters in length.

Conversely, I have also examined natural antlers (of Ganoderma lucidum) that grew above ground, but in a flash flood zone, in a hydric hammock (or, a low lying area of predominantly Oak trees, near a stream). If that makes sense; carbon dioxide levels in the air produce antlers, but also consider it is the complete lack of any air.

Ganoderma oregonese Murrill is the largest known Reishi mushroom in the world. It can grow up to 120 centimeters in diameter, but I have yet to hear reports of the wildcrafted ones growing into antler shapes. And, for identification purposes, it helps to know that G. oregonense has a density of pores that is more like 2-3(4) per 1 millimeter.

Thanks Ndoll-
By: Drew Henderson (Hendre17)
2011-08-11 22:14:29 UTC (+0000)

I am appreciative for your input :)

I have been using Reishi medicinally for myself as an overall panacea and have found amazing results from the fungus. The information I was referring to in my personal email to you was quoted from J Chilton (in Terry Willard’s outstanding book) in regards to his home grow operation with reishi in Canada- He claimed that by simply increasing carbon dioxide in a growing room the Reishi in question would fruit in antler form.

Still would love to know a few of your sources so I could reference them for myself personally. Let me know some articles when you get a chance… Glad someone else is as enthusiastic about Reishi as I am!

Thanks again,


Re: G. oregonense Murrill
By: ndoll
2011-08-11 20:02:54 UTC (+0000)


To answer your questions: I get my info from a collection of books and papers about Ganoderma. I am not citing any one work in particular, and I am just going by memory. Your observation (73128) is not the antler shape. Here is my description why by comparing your specimen in paragraph 1, and then the antler-type in paragraph 2.

1) Your specimen: It is with a stem and clearly defined cap (an additional term for that is pedicellate). The stem is growing in a horizontal direction that is inserted laterally on the pileus (a fancy term for that feature is plagiopleuropodal). The pileus has a sterile, white-colored, fleshy band along a fully-developed margin. The undersurface of the cap (or the hymenophoral surface) is textured with small pores, also called pore-mouths. Upon dissecting the specimen in half, the interior will have pore tubes. The main factor is that your specimen has pores and is setting the stage for the production of basidiospores.

2) In comparison, the “antler” form (found in nature) is this: It has a stem. It does not have a cap. It is without a sterile margin, so there is not whitish-colored flesh at its apex. The apex of antlers are not fleshy, they are lacquered (or, laccate). The antler specimens that I have examined have apexes with thin laccate cuticles that are creamy-colored Imperial Yellow. The imperial yellow color can fade with age. The antler material itself does not function to produce basidiospores. Other fruit bodies with caps and pores occur from the same substrate and compensate with the production of basidiospores.

The antler shaped ones tend to hide away and the reports of people finding in nature are somewhat rare. Always remember the Reishi fungus is not a play toy. I recommend consulting with a highly-skilled physician with the appropriate qualifications and with whom you can trust. The safest use for Reishi is in your home or on your person as a talisman against evil.

Good work
By: ndoll
2011-08-10 19:44:06 UTC (+0000)

I agree with your identification. This is Ganoderma oregonense Murrill.

This specimen is stipitate (or, with a stipe). The “antler” ones are without a developed hymenophoral surface (or, without pores; and not spore-bearing).

Created: 2011-08-04 03:32:52 UTC (+0000)
Last modified: 2011-08-29 22:23:01 UTC (+0000)
Viewed: 445 times, last viewed: 2017-10-10 05:11:15 UTC (+0000)
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