Dog Lichen

Monday, December 16th 2013

While planting Oak trees last week this beautiful dog lichen was found growing amongst damp moss in the woodland clearing.

This has since been identified as Peltigera hymenina, yet another new species for the reserve!  Dog lichens are relatively common and can be found growing on moss, trees and rocks, though are most frequently seen growing on bare soil.  The irregular spreading thallus can reach 20 cm in diameter, but typically grows within the range of 10 cm to 15 cm.  The thin papery lobes develop to about 1.5 cm to 2 cm in width and 2 cm to 6 cm in length.

The apothecia (sexual reproductive structures) are distinct with a dark red-brown colour.  Spores are released from these, representing only the fungal part of the lichen.  In order to reproduce the spores must chance upon an algal partner.  A benefit of reproduction using spores is the lichen can spread over a large distance.  Dog lichens can also reproduce using soredia, genetically identical to the parent these clusters of algal cells surrounded by fungal hyphae travel only a short distance from the original lichen.


(0) Comments:

There are no comments for this blog post yet. Why not start the discussion? - use the form below:


Leave a Comment:







Remember my personal information

Notify me of follow-up comments?

The following question is designed to make sure you are a real person and helps us cut down on spam.
Your comments will appear here once an administrator has reviewed them.

How many days are there in one year? (3 character(s) required)


Back to Top

Recent Blog Posts:

News from the North and Foxglove Sightings

Posted 24th June 2018

Firstly more news from the North.  For several years the team have found a Barn Owl's nest on an island.  There have been eggs and…

Read More

Swallow Tales

Posted 23rd June 2018

At this time of year there are many summer wildlife visitors to the UK. Barn Swallows, Swifts, Sand Martins and House Martins all belong to…

Read More

Mole madness and other sightings

Posted 22nd June 2018

We've seen four Moles above ground today, most likely as a consequence of their invertebrate prey being scarce and/or the ground being particularly hard due…

Read More

Tidying the Green Route

Posted 21st June 2018

The group have achieved a great deal during our tidying of the Green Route today. We started the morning with boardwalk repairs and removing vegetation…

Read More
 
 
 

Sitemap | Accessibility Policy | Privacy Policy | Terms & Conditions |