Observation 95905: Chlorophyllum molybdites (G. Mey.) Massee

in grass near a steam vent at Hilgard Hall.

These fruitbodies are from the same patch as observation 64580


From a different patch than the mushrooms in the main picture. These are from my parent’s lawn in San Diego in 2006.

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Eye3 = Observer’s choice
Eyes3 = Current consensus


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By: Debbie Viess (amanitarita)
2012-06-16 07:22:12 PDT (-0700)

quite a few folks can’t eat the edible Chlorophyllum species, either, even IF they are well cooked.

you don’t know if you don’t try ’em though. cooking your mushrooms well is good advise for any edible species, frankly.

Recent personal experience
By: Mushroom Viper
2012-06-15 16:58:39 PDT (-0700)

For c. brunneum:

Ate from the same patch 3 times, delicious and others also ate them without issue.
4th time sent me reeling to the bathroom every 15 minutes for 8 hours.

Always cook them super-thorough, as that was the only difference I can pinpoint between indulgences (and an extra day of refrigeration, which may also have something to do with it). I believe I cooked it about 10 minutes less on the time that broke me, thankfully I ate alone that night… Anyone else have similiar experiences? I’ve spoke to others experienced with this species which led to similiar stories as mine.

interesting that they continue to fruit there…
By: Debbie Viess (amanitarita)
2012-06-11 08:55:34 PDT (-0700)

since Else first found them. artificially warm environment must be the reason. I wonder how long-lived the mycelium will be?

Indeed, the distinctions between edible and poisonous Chlorophyllum species are subtle. IMO, for a novice, the ONLY safe way to tell the diff is by spore print. Even a gill smash mount won’t work, since the spores remain white until just before dropping. Molybdites can remain white gilled until fairly late in their development; if you are looking to distinguish from the edible Chlorophyllum species, you will prob. want to know the results earlier rather than later, while those fruit bodies are still young and fresh.

Once the gills have gone green though, it’s unmistakeable. And once you are well familiar with both species, then yes, you can tell them apart in hand.

Thanks You
By: AmatoxinApocalypse (AmatoxinApocalypse)
2012-05-31 21:45:25 PDT (-0700)

Thanks for that Christian, it was very helpful.

By: Christian (Christian Schwarz)
2012-05-31 21:43:39 PDT (-0700)

The distinctions between the members of this genus can be kind of subtle, especially for people who haven’t seen this species.

It was the only one I was familiar with when I lived in San Diego; here’s some characters that I use to tell the species apart:
1. Ecology – this species grows in rather warm weather on lawns and in cultivated areas
(most of the time). C. rachodes/C. brunneum tend to like trees of some kind overhead, and often fruit in somewhat cooler weather (most of the time).
2. The cap skin and scales are usually comparatively paler on this species. Their attachment to the cap is also different, especially when young and fresh (see added photo of the granular-floating scales). Also, the scales are often more strongly central in this species, esp. in age. Good examples are: observation 86557, observation 54754, observation 25763, and observation 51020. The last observation shows that this species sometimes gets a weakly striate-sulcate cap edge.
3. The shape of young buttons is like an egg on a stick (best shown on the sectioned fruitbody here) I find that buttons of the other species are more often broader. Even old fruitbodies are often more round-conical (slightly pointed at the center) than in the other Chlorophyllums in this area.
4. The texture is softer on expanded fruitbodies of this species than the other two – it seems less densely built.
4. Most importantly, the gills are green-gray in mature fruitbodies.

This patch has been known to the UCB Bruns Lab folks (ie. Else and Nhu and Thea) for a while, and they’ve got vouchers for it.

How did
By: Byrain
2012-05-31 17:07:34 PDT (-0700)

you determine this to be C. molybdites? Just curious. :)

Created: 2012-05-31 14:31:37 PDT (-0700)
Last modified: 2016-04-27 12:08:26 PDT (-0700)
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