Observation 142885: Limacella
When: 2013-08-13
No herbarium specimen

Notes: 6.5cm cap diameter, growing on ground at the base of an oak tree in mixed forest. Free gills, white spore print. Smooth globose spores with single protruding “nipple” 3.5-5µ.

Proposed Names

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Comments

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My thought is about how can you attract the attention of a generalist who can give you…
By: R. E. Tulloss (ret)
2013-08-17 16:27:00 PDT (-0700)

a name or a clue. Maybe just type: “Hey, Noah Seigel! Hey, John Plischke! Hey, Walt Sturgeon! What is this thing?”

Very best,

Rod Tulloss

I looked at them too…
By: Brian Adamo (adamo588)
2013-08-17 14:58:53 PDT (-0700)

The free gills and inamyloid, round spores should eliminate Armillaria and Floccularia. Floccularia spores are all amyloid, and they both have attached gills. I guess I’ll just wait and see if anyone else weighs in with an opinion. If you feel really strongly that it can’t be Limacella, I’ll change it to Agaricales and be done with it. Thanks.

Cheers,
Brian

How about Armillaria or Floccularia?
By: R. E. Tulloss (ret)
2013-08-17 12:35:42 PDT (-0700)

It has been a long time since I collected material outside the Amanitaceae.

Very best,

Rod

Any suggestions?
By: Brian Adamo (adamo588)
2013-08-17 09:03:42 PDT (-0700)

Hi, Rod

Thanks for commenting on this obs.. I always look forward to your input. I originally was thinking Tricholoma, but the small, globose spores didn’t match up with any I looked at. If it’s not Amanita, Lepiota, or Limacella, what’s left?
Hello, Brian.
By: R. E. Tulloss (ret)
2013-08-17 08:22:11 PDT (-0700)

After a little thought, I don’t think that this is a Limacella. There are a small number of limacellas with a partial veil, and all of these (so far as I know) have a membranous partial veil. An example is A. guttata:

http://www.amanitaceae.org?Limacella+guttata.

The other species may have a ring of gluten-supporting hyphae on the upper stem, but these “rings” or pseudo-rings do not have a fluffy appearance. These hyphae (usually seen in a collapsed state and colored by the remainder of the gluten on them) are translucent themselves and were formed by the intergrowth of pileal gluten-supporting hyphae and similar hyphae from the stipe surface after [EDIT] the expanding cap margin comes into [EDIT] contact with the stipe. The latter process is one of the major distinguishing characters segregating the development process in Amanita and Limacella.

I’m not saying definitively that your [EDIT] material is not a Limacella; however, it is unlike all the limacellas of which I know.

very best,

Rod

Created: 2013-08-16 09:32:15 PDT (-0700)
Last modified: 2013-08-16 09:32:22 PDT (-0700)
Viewed: 34 times, last viewed: 2016-10-24 01:47:10 PDT (-0700)
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