28 January 2014

LNHG recording field trip to North Shian

Photos by Jan Hamilton, Cynthia Grindley and Carl Farmer.  Mouse over the photos for photo credits and other info.

We made our way through a very marshy wood consisting mainly of birch, oak, hazel, willow and holly.  Many of the birches were quite mature and the whole wood was rich in lichens.  Our first objective was to reach the coast, which involved treading very warily through the wetter parts of the wood.  Then we aimed to head along the shore to a place where I spotted Rock Tripe several years ago, to see if we could locate it again.

Hymenochaete rubiginosa   Hypoxylon fuscum

A couple of wood-rotting fungi: Oak Curtain Crust and Hazel Woodwart

Platismatia glauca

Nice photo by Jan of the very common lichen Platismatia glauca on willow

Menegazzia terebrata

The Flute Lichen, Menegazzia terebrata, always a nice find.  One of the few foliose lichens with hollow lobes, and easily reognised by the holes in the surface.

  Thelotrema lepadinum

The Barnacle Lichen, Thelotrema lepadinum, an indicator of old woodland, here growing on willow.

Pertusaria amara   Gymnopus aquosus

The bitter-tasting Pertusaria amara on birch.  On the right is an intriguing fungal find by Cynthia, growing among mosses in very wet ground.  For the photo it was replaced after having been picked, and as a result you can see the knobbly stem base.  It turned out to be Gymnopus aquosus, which we've had twice before in different places, both in springtime.  This is not common nationally but is obviously quite frequent in these parts.

Betula pubescens, peeling bark covered with white lichens   Pertusaria multipuncta

Some of the birches looked very striking with bark peeling off in bright white sheets.  This was due to white lichens covering the bark, among which were Pertusaria multipuncta, above right, but most of them were unidentifiable as they had no apothecia or other reproductive structures.

North Shian shore

On reaching the coast we had lunch here, then walked along the shore to the Rock Tripe site, snapping away at coastal lichens and other items of interest as we went.

Dynamena pumila

The hydroid Dynamena pumila on a cast-up kelp stem

Halichondria panicea or similar

Breadcrumb Sponge (or perhaps a similar species; sponge ID info is hard to come by) on Egg Wrack, washed up on the beach

Unintended rock art

Pictish rock art?  Only when Jan told me that I myself was the artist did I realise what her photo really was.

Flammulina velutipes   Tremella mesenterica

The shore was edged by gorse bushes all the way.  One of them was covered in flowers as if it was Spring.  On a couple of others the colour was provided by the familiar gorse fungi Velvet Shank (past its best) and Yellow Brain Fungus.

Caloplaca thallincola growing over Verrucaria maura

Caloplaca thallincola growing over Verrucaria maura

Anaptychia runcinata

Anaptychia runcinata

Degelia plumbea, oddly pale form on coastal rock

Degelia plumbea on coastal rock, with very odd colouring: a pale grey-green thallus and pinkish instead of blue-black hairs at the margin.  Perhaps affected by wave action due to recent storms and high tides?  To the right is Parmelia saxatilis, a very common lichen on both trees and rocks, inland or coastal.

Dermatocarpon miniatum

Dermatocarpon miniatum

Xanthoparmelia conspersa

Xanthoparmelia conspersa

Lasallia pustulata, dry

And the object of our journey, Rock Tripe!  This is how it looks when dry...

Lasallia pustulata, wet

...and this is its wet state.  In several places there was water seepage down the rock face keeping it damp.  It favours this sort of situation especially if the water is nutrient-enriched.

Stereum hirsutum

Finally Jan's great pic of Stereum hirsutum gleaming golden in the sun on a burnt stump as we made our way back to the road.

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All photos and other content copyright Carl Farmer except where stated.  Some photos on this page are Jan Hamilton or Cynthia Grindley.