Cyclocybe cylindraceus

Poplar fieldcap.

Mature fruit bodies on poplar in Basildon, UK.
Mature fruit bodies on poplar in Basildon, UK.
Mature fruit bodies on poplar in Basildon, UK.
Mature fruit bodies on poplar in Basildon, UK.
Developing fruit bodies on poplar in Harlow, UK.
Developing fruit bodies on poplar in Harlow, UK.
Over-mature fruit body on poplar in Basildon, UK.
Developing fruit bodies on poplar in Basildon, UK.
Developing fruit bodies on poplar in Basildon, UK.
Close-up of gills of mature fruit bodies.

Mature fruit bodies on poplar in Basildon, UK.
Mature fruit bodies on poplar in Basildon, UK.
Mature fruit bodies on poplar in Basildon, UK.
Mature fruit bodies on poplar in Basildon, UK.
Developing fruit bodies on poplar in Harlow, UK.
Developing fruit bodies on poplar in Harlow, UK.
Over-mature fruit body on poplar in Basildon, UK.
Developing fruit bodies on poplar in Basildon, UK.
Developing fruit bodies on poplar in Basildon, UK.
Close-up of gills of mature fruit bodies.

Common name

Poplar fieldcap.

Often found on

Poplar and willow.

Location

Usually found at the base of the tree. Seldom up the stem.

Description

Annual cap. Generally develop in clusters. Begin as small whitish caps that become more beige-brown with age often cracking and hardening on the cap. Gills whitish brown that stain brown with age.

Confused with

None.

Significance

Considered saprotrophic. Associated with a white rot of wood. May result in the failure of the host tree at the butt or root plate.