Observation 65710: Roridomyces roridus (Fr.) Rexer

When: 2009-11-04

Collection location: Observatory Hill, Victoria, British Columbia, Canada [Click for map]

48.5186°N 123.4151°W 195m

Who: Oluna & Adolf Ceska (aceska@telus.net)

Specimen available

Herbarium_Specimen(s): UBC F27150
Original_Herbarium_Label: Mycena rorida (Fr.) Quél.
Syn.: Roridomyces roridus (Fr.) Rexer
location_detail: E-slope, just above the hairpin curve
Habitat: forest with Pseudotsuga menziesii, Arbutus menziesii, Quercus garryana
Host/Substrate: in soil/duff
Date: 2009-11-04
Collector(s): Oluna Ceska
Identified_by: Oluna Ceska

Species Lists


Drawing of Observatory Hill collection November 4, 2009.

Proposed Names

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= Observer’s choice
= Current consensus


Add Comment
amanitarita & myxomop, please don’t use our MO observations,
By: Oluna & Adolf Ceska (aceska@telus.net)
2018-09-07 14:04:29 PDT (-0700)

when you want to discuss general matters, non-related (or just partially related to) our observation. Go to the myxomop’s own MO Facebook!

just reread it. I have seen it before.
By: Debbie Viess (amanitarita)
2017-12-07 11:49:39 PST (-0800)

I just didn’t believe that this MUSHROOM glowed. Apparently, it doesn’t. I wonder how many other “reports” might just turn up wrong, once examined more deeply?

It is not easy to do this work, both the original work that we cite here, there and everywhere, as well as compilations and checking the follow-up studies. Not every original study can be repeated with the same results. Just ask John Holliday!

And it is confusing when European or out of country mushrooms are claimed to be bioluminescent and then NA examples are given.

Source does matter, esp. if they are not the exact same species!

I am hardly a mycenologist, but I am curious and I never take anything at face value.

this observation
By: Danny Newman (myxomop)
2017-12-07 11:39:16 PST (-0800)

has been removed from the species list, as there is no indication of luminescence in either notes or photographs. i have tried to only include observations in the BF species list which have this evidence, but some spring cleaning is probably in order.

I try to keep the list updated with the addition of newly described, cryptic species, including deprecations and removals where necessary. with 129 species lists to maintain, it’s hard to stay current with all of them.

the Desjardin paper also shows whether carpophores, mycelium or both were reported as luminescent. have you look at that paper? do you need a copy?

color me confused!
By: Debbie Viess (amanitarita)
2017-12-07 11:28:13 PST (-0800)

I assume that our comments were simu-cast. Do read the definitive article translated from the French. Only mycelia was shown to be bioluminescent, and then only in some cases and only weakly so.

We are speaking of western collections here, in this particular instance. Are all Roridomyces roridus across the world the exact same species? My sole expereince is with western forms, and I still am doubting their bioluminescence. I did see Alan’s photo of Mexican collections, but none of those were of this species.

the Desjardin paper
By: Danny Newman (myxomop)
2017-12-07 11:18:49 PST (-0800)

lists by abbreviation the continents/regions from which each entry has been reported. inclusion of a given name in the Bioluminescent Fungi list is irrespective of geography, as it aims to encompass all records worldwide. i removed the special designation of those species whose bioluminescence was not known from NA, because to do so would necessarily warrant equal designations for presence/absence of luminescence in any other continent/region. that data is available in the paper itself, along with mention of which publications reported luminescence for each species, and under which name (including synonyms).

the Desjardin paper
By: Debbie Viess (amanitarita)
2017-12-07 10:50:33 PST (-0800)

also lists “reported as bioluminescent” Mycenas maculata, haematopus, sanguinolenta, epiptyregia and galopus. Any of these been field confirmed here?

Do we have the same Roridomyces roridus as is present in Europe? Malaysia? Australia? The original paper in French from the 1950s was the only one that I could find without a pay wall, and my French is a bit rusty. It did say that both gills and spores glowed (bad translation by me; see below), and so did its Rubus leaf host! I actually found these on Rubus leaves last weekend.

I just google translated the French and added the exerpts to the Roridomyces roridus page here: http://mushroomobserver.org/name/show_name/20226

Apparently, NO part of the actual mushroom glows, only bits of mycelia, weakly, in only some cases!

Wish that I had discovered this dialogue before yesterday, when my own material might have actually still glowed! Important to repeat these experiments, n’est ce pas?

By: Danny Newman (myxomop)
2017-12-07 09:09:41 PST (-0800)

1. Dennis E. Desjardin, Anderson G. Oliveira and Cassius V. Stevani. “Fungi Bioluminescence Revisited.” Photochemical & Photobiological Sciences. 2 (2008): 170-182. (DOI: 10.1039/b713328f)

2. M. Josserand, Sur la luminescence de ’Mycena rorida” en Europe occidentale, Bull. Mens. Soc. Linn. Lyon, 1953, 22, 99.

now that i have you on the line …
By: Debbie Viess (amanitarita)
2017-12-07 08:22:03 PST (-0800)

have you ever heard of this sp. being bioluminescent? I have my doubts.

By: Debbie Viess (amanitarita)
2017-12-07 08:21:07 PST (-0800)

needs a sarcasm font! ;)

Yes, I know that those are synonyms,
By: Oluna & Adolf Ceska (aceska@telus.net)
2017-12-06 19:27:38 PST (-0800)

but I wonder if myxomop knows it as well. Adolf

genus name?
By: Debbie Viess (amanitarita)
2017-12-06 14:54:03 PST (-0800)

they are synonyms.

I wonder
By: Oluna & Adolf Ceska (aceska@telus.net)
2012-08-15 14:37:29 PDT (-0700)

What is the difference between Roridomyces roridus and Mycena rorida?

By: Michael W (Michael Wallace)
2011-04-18 00:10:21 PDT (-0700)

Nice find, by any chance was this collection bioluminescent?

Created: 2011-04-18 00:05:52 PDT (-0700)
Last modified: 2018-09-07 14:37:36 PDT (-0700)
Viewed: 211 times, last viewed: 2019-02-12 02:13:03 PST (-0800)
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