Observation 191725: Armillaria (Fr.) Staude

When: 2014-10-10

Collection location: Deep River County Park, Hobart, Indiana, USA [Click for map]

Who: Marielle Biscocho (mbiscoch)

No specimen available

-This specimen was associated with the soil, and my collected sample was found growing in solitary.
-There wasn’t a distinctive smell.
-The diameter of the medium tan pileus was measured to be about 3.1 mm.
-The surface of the pileus felt greasy and smooth, but it looked dull (not shiny).
-The pileal shape was broadly convex, and the margin was smooth.
-The flesh was a cream color.
-The orange tan stipe was centrally located. It was measured to be about 4 mm in length and 0.6 mm in width.
-When the specimen was cut in half, the stipe was observed to be solid and equal shaped.
-The base was inserted.
-The surface of the stipe looked mostly dry but with very minor shiny areas [due to some material on the stipe?]. Also, it felt smooth to the touch.
-The tan gills were adnexed and even.
-There was either three or four lamallae tiers but I wasn’t sure which since the spacing between each gill was very small.
-The gills were in a slightly crisped (or wavy) fashion.
-There wasn’t much tissue on the stipe that would indicate the obvious annulus, but the stipe was observed to have some noticeable ring on the stipe surface.
-I wasn’t able to obtain a good spore print. However, under 40x magnification, the spores were clear and round. Many basidium were found.


Mb79 spore and basidia.jpg
Spores and basidium

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Created: 2014-12-04 21:02:14 CST (-0600)
Last modified: 2014-12-04 23:44:42 CST (-0600)
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