APHOTOMARINE

An educational resource dedicated mainly to the photography
and diversity of marine life that can be found in coastal waters
and intertidal areas of Great Britain and Ireland by David Fenwick.

A-P-H-O-T-O Wildlife Stock Image Library
Collemopsidium sp. = Pyrenocollema halodytes (Family Xanthopyreniaceae)
Marine Lichen
Pyrenocollema halodytes
- on limpet 1

Marine Lichen
Pyrenocollema halodytes
- on limpet 2

Marine Lichen
Pyrenocollema halodytes
- on limpet 3

Marine Lichen
Pyrenocollema halodytes
- on barnacle 1

Marine Lichen
Pyrenocollema halodytes
- on barnacle 2

Marine Lichen
Pyrenocollema halodytes
- on barnacle 3

Marine Lichen
Pyrenocollema halodytes
- on barnacle 4

Marine Lichen
Pyrenocollema halodytes
- on barnacle 5

Marine Lichen
Pyrenocollema halodytes
- on barnacle 6

Lichen commonly found on limpets and barnacles causing pitting to the shell. Images taken on upper middleshore on beach east of Marazion, Cornwall.

The genus name Collemopsidium has taken over from Pyrenocollema halodytes as it has recently been found that lichens named Pyrenocollema halodytes consisted of three distint species.

Ref: Alan Silverside's Lichen Pages

Collemopsidium species Pyrenocollema halodytes A Marine Lichen
The main objective of this website is in furthering environmental awareness and education through the medium of photography. To increase awareness and access to the wildlife of the region and help
people find and identify it. Sometimes the difference between species is obvious but many species can only be determined by observing microscopic characteristics that are specific to any one species.