Observation 187249: Limacella sect. Amanitellae Gminder
When: 2014-11-03

Notes: Very strong farinaceous (doughy end) odor.

Micrographs from the “pileipellis”.

Same organism as obs 183491 (Oct. 15) and obs 167952 (June 17).

Proposed Names

28% (1)
Recognized by sight
54% (1)
Recognized by sight

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Eye3 = Observer’s choice
Eyes3 = Current consensus


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Thank you for finding the error. It’s been that way for a couple of years at least.
By: R. E. Tulloss (ret)
2014-11-04 16:39:41 PST (-0800)

Thank you.

I am still learning about the anatomy of Limacella. They all have clamp connections; so clamps aren’t as useful as they are in Amanita. You’d think that having small puncations on the spores would be useful; however, it takes very high power to see them and be sure of what you’re seeing. It’s my impression that they are not always present on all spores in the species that are reputed to have them. The literature on Limacella anatomy is very limited. Original descriptions have tended to be very brief. There are very, very few sequences purported to be from limacellas in GenBank. The genus needs attention.

Very best,


Specimen, veil, micro characters
By: Jacob Kalichman (Pulk)
2014-11-04 12:43:36 PST (-0800)

I have them (I don’t report specimens till they’re fully dry in labeled bags).

More detail in the partial veil is visible in obs 183491.

What other kinds of micro characters should I be looking at for these?

p.s. The image caption on that roseicrema collection description says Lepidella…

I think I see a membranous (skirt-like) partial veil on the stem in two cases.
By: R. E. Tulloss (ret)
2014-11-04 03:29:33 PST (-0800)

This is a good macroscopic character for sect. Amanitellae.

It’s too bad that the material had aged ungracefully.

There are three names for North American taxa in this section. Two are based on West Coast material:



They might even be synonyms. The types probably would present problems for DNA extraction because they are both from the early 20th Century.

A recent collection that might be roseicremea is shown (Thanks to Nancy Burnett) here:


You have found yourself in a very interesting little niche.

Very best,


Very cool, Jacob.
By: R. E. Tulloss (ret)
2014-11-04 03:19:28 PST (-0800)

We can classify this to section because of your photos of the gluten-retaining hyphae on the cap surface. The fact that there are terminal cells or short chains of cells that are more inflated than the typical narrow gluten-retaining hyphae of Limacella puts this critter in Limacella sect. Amanitellae.

I think this is a first for MO in terms of the microscopy of a species of this section.

No specimen?

Very best,


Created: 2014-11-04 00:14:57 PST (-0800)
Last modified: 2014-11-06 22:36:48 PST (-0800)
Viewed: 69 times, last viewed: 2016-10-24 14:21:49 PDT (-0700)
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