Observation 196513: Cuphophyllus (Donk) Bon

When: 2015-01-16

Collection location: Lear Park, Longview, Texas, USA [Click for map]

Who: L G Price (LG_Price)

No specimen available

UPDATE 2: I think this is a collection of 2 species of Cuphophyllus. I went back but they are ruined. I will have to sort these next year.

Growing at edge of mixed woods, mostly hardwoods. Under small elm, privet, and large oak, yaupon. Near Water. Growing in a group of about 50 in a circle about 10 feet diameter.

Smell: mild mushroom. Taste, none.

Staining: no staining observed due to handling or tearing.

Cap: Fairly soft, flexible. White with browned edges. Browned edges may be due to recent frosts. Most were about 0.75 inch across. Most mature were 1 inch to 1.25 inch across. Dry. Some were centered and symmetrical, Opening fully flat. Many were poorly formed, with off center stem and/or part of cap not separating from stem. Cap conical in smaller caps. No PV seen even in smallest ( 2-3mm caps).

Gills: Growing down stem. White. Close to near distant.

Stem: white – 8-10 mm wide in larges caps. Length – 2 to 3 times cap diameter. Irregular shape, some flattening. Some growing clumped in 2’s or 3’s. No big clumps. Stem soft, fibrous, hollowing in center with less dense white flesh. Rooted with white mycelium in soil.

Spores: white, print in progress. I looked a few spores but need to try again tomorrow.

Spore size based on 2 spores (in microns)
3 10.05 7.12
4 10.70 7.16

UPDATE: I don’t think the above spore sizes are reliable. I couldn’t get any spores today. I will have to collect more.


1000x – 1 dev = 1 micron (H20 with Teepol Equiv. w/Eosin Y stain)

Proposed Names

28% (1)
Eye3 Eyes3
Used references: internet
Based on microscopic features: spore shape

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Eye3 = Observer’s choice
Eyes3 = Current consensus


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Created: 2015-01-16 22:49:48 CST (-0600)
Last modified: 2015-01-19 19:56:46 CST (-0600)
Viewed: 33 times, last viewed: 2017-06-19 18:29:29 CDT (-0500)
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