Observation 118084: Lepiota spheniscispora Vellinga

When: 2012-11-25

Collection location: Bon Tempe Reservoir, Marin Co., California, USA [Click for map]

Who: Ron Pastorino (Ronpast)

Specimen available

These were growing near Doug fir.
Older specimens where fragile stems are breaking apart.
Spores were strongly dextrinoid and ~ 14.0-20.2 X 4.1-5.1 microns.

Proposed Names

10% (3)
Recognized by sight
77% (2)
Recognized by sight: More golden-brown cap center, diffuse to whitish near margin, bands of scales on stipe not particularly dark or prominent

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Eye3 = Observer’s choice
Eyes3 = Current consensus


Add Comment
Spore size
By: Christian (Christian Schwarz)
2012-11-27 14:54:57 EST (-0500)

Although I think these are pretty typical for L. spheniscispora, it’d be tough to make the call on a really intermediate collection (say one where the colors were really dark reddish brown but without a discrete central patch) – Else mentions that there are no consistent micro characters to tell them apart.

Thanks Christian
By: Ron Pastorino (Ronpast)
2012-11-27 11:01:20 EST (-0500)
I couldn’t download Else’s paper on L. spheniscispora to check on spore size, etc., and Dimitar’s photos seemed too brownish. However, L. spheniscispora does make more sense based on the other characteristics.

Created: 2012-11-27 00:33:10 EST (-0500)
Last modified: 2012-11-27 15:00:04 EST (-0500)
Viewed: 62 times, last viewed: 2018-02-27 08:22:55 EST (-0500)
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