smurfberries
libutron:

Mycena amicta 
With a cap just 5 to 15 mm in diameter, these small fungi belonging to the species Mycena amicta (Mycenaceae), sometimes have a striking olivaceous, greenish or bluish green shade. The base of the stipe usually is somewhat blue-green, but sometimes it can be entirely blue.
The species grows solitary, scattered, to occasionally clustered on conifer logs (often under the bark) in montane regions of North America and Europe.
References: [1] - [2]
Photo credit: ©Tatiana Bulyonkova | Locality: Novosibirskaya Oblast, Russia (2012)

libutron:

Mycena amicta 

With a cap just 5 to 15 mm in diameter, these small fungi belonging to the species Mycena amicta (Mycenaceae), sometimes have a striking olivaceous, greenish or bluish green shade. The base of the stipe usually is somewhat blue-green, but sometimes it can be entirely blue.

The species grows solitary, scattered, to occasionally clustered on conifer logs (often under the bark) in montane regions of North America and Europe.

References: [1] - [2]

Photo credit: ©Tatiana Bulyonkova | Locality: Novosibirskaya Oblast, Russia (2012)