Observation 118843: Agaricus L.

When: 2012-09-20

Collection location: Merrillville, Indiana, USA [Click for map]

Who: Danielle B. (dbly)

No specimen available

-found a couple specimens growing with in 1 foot of each other in the soil with dead leaves around

-pileus was dry/dull and convex/hemispheric, measured 57mm in diameter, smooth surface with squamous scales, smooth margin, pileus color had a light brown center with tan margin, easily peels

-free even gills, light brown in color (30mm in length) regular lamellulae present (>1mm apart in spacing)

-annulus present, possibly double edged?

-dry/shiny/silky light tan stipe, smoooth surface, stuffed stipe, bilbous base, 100mm in length, 12mm in width, inserted base

- no volva

-brown spore print, spore shape was ob-amydaliform shape

- spore measurements (length/width) (in micrometers) I tried to include the one of the largest and smallest spores I could find along with the majority of the same sized spores that I found. Measured with an 100x oil immersion objective.

1. 6.64/3.32
2. 6.64/3.32
3. 5.81/3.32
4. 5.81/3.32
5. 5.81/3.32
6. 7.47/4.15
7. 6.64/3.32
8. 6.64/4.15
9. 6.64/4.15
10. 5.81/4.15

range (5.81-7.47) and (3.32-4.15)

Proposed Names

56% (1)
Recognized by sight

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Eye3 = Observer’s choice
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Add Comment
Yellow staining
By: walt sturgeon (Mycowalt)
2012-12-03 23:14:35 CST (-0600)

of the inside of the stipe base would indicate Agaricus placomyces or something close to that.

Created: 2012-12-03 22:22:03 CST (-0600)
Last modified: 2012-12-03 23:12:48 CST (-0600)
Viewed: 25 times, last viewed: 2017-09-01 00:07:01 CDT (-0500)
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