Observation 25928: Armillaria (Fr.) Staude

When: 2009-09-27

Collection location: Gifford Pinchot State Park, York Co., Pennsylvania, USA [Click for map]

Who: kate (kate)

No specimen available

These small yellow fungi were clustered around the trunk of a dead hardwood tree. Other forms of fungi were also found growing on the trunk. They are firm in texture, securely attached to the dead tree.

[admin – Sat Aug 14 02:00:41 +0000 2010]: Changed location name from ‘Gifford Pinchot State Park, YORK COUNTY, PENNSYLVANIA’ to ‘Gifford Pinchot State Park, York Co., Pennsylvania, USA’


This image will give you an estimate of size note the fly on one of the fungi.
Size correlation for fungi approx 2cm in length.

Proposed Names

79% (4)
Recognized by sight
-27% (3)
Recognized by sight: there a bit young. but they resemble Pholiota of some sort.

Please login to propose your own names and vote on existing names.

= Observer’s choice
= Current consensus


Add Comment
I collected another specimen for a spore print. Tiny veiled cap.
By: kate (kate)
2009-09-30 02:43:01 CDT (-0400)

I returned today to the clusters of fungi to find even more growth on the root system of this dead tree in addition to the trunk. The new clusters are very small however the clusters I viewed yesterday are growing. I used cuticle scissors to remove the small veil to expose the gills. Hopefully I will have a good spore print in the AM.

I collected another specimen for a spore print.
By: kate (kate)
2009-09-30 02:23:25 CDT (-0400)
By: Tom Volk (TomVolk)
2009-09-29 14:15:28 CDT (-0400)

Definitely very young A. gallica or A. calvescens. or another Armillaria. Definitely Armillaria (The mycologist’s favorite plant is the hedge…)

I did observe Jack O’ Lanterns growing about 150 to 200 yards from this dead tree.
By: kate (kate)
2009-09-29 12:37:48 CDT (-0400)

I will take a second look at these today the 29th. to collect a sample, and to note any new changes in size texture ect. They are very small. I have an image of the size I will upload.

Another thing to consider
By: Paul Derbyshire (Twizzler)
2009-09-29 12:11:17 CDT (-0400)
By: Eddee (eddeeee)
2009-09-29 10:25:05 CDT (-0400)

There very yellow they remind me of a golden Pholiota with out the warts. YOu should go back when the caps have opened up and get a better look at gills annulus and stuff. Another thing you can do with immature mushrooms is to pic them at the base and put them in a little cup of water I like to add Dextrose to the water and then in a day or so they will open up for you so you can get a spore print. I have once seen some Jack o lanterns of that color coming from a stump such as yours in Morgantown.