Posts Tagged ‘Xanthoria’
‘niche’ on a rock
In July, we went to the Saint Martins area for the day and spent some time exploring the caves and beach-combing. We also took the short drive to the lighthouse at Quaco Head. The lighthouse is perched on the cliff overlooking Quaco Bay.

the Quaco Head Lighthouse ....... “The present Quaco Head Lighthouse was constructed in 1966 and consists of a square tower rising from one corner of a concrete fog signal building. The light in its lantern room produces a white flash every ten seconds, while the fog signal emits a three-second blast every thirty seconds, when needed.” from http://www.lighthousefriends.com/
If you look out over the Bay, you can see some exposed rocks where sea birds make their home, and, to the north-east, Martin Head, about 30 kilometers away.
Wildflowers were everywhere, but what caught my eye was a lichen on a flat rock at the base of the lighthouse. It was bright orange, like a splash of paint.
There are two orange lichens that live on rocks in the coastal area of New Brunswick, Xanthoria and Caloplaca. The orange lichen I found at Quaco Head is likely one of two species: Xanthoria sorediata (Vain.) Poelt or Xanthoria elegans (Link) Th. Fr.

bright orange Xanthoria lichen on a rock .... there are also two or more other species of lichen present
A lichen is not a plant, but a composite organism, consisting of an algae and a fungus, living together in a symbiotic, mutually beneficial, relationship.
Ringing
Swallow Tail Lighthouse, Grand Manan
air saltfresh and balsam
walls lapped by a juniper sea
pale mimic of the salt sea
battering its foundations
its endurance
a mystery
until I found
an iron ring
anchored deep
in rock
almost lost
in lichen
Xanthoria orange
lifted and dropped
run round
its axis
clashing on stone
creak and clank of the metal door
echoes climbing the welded stair
ground glass grit of the light
fog washed clang of the channel bell
rock lashed to the lighthouse
salt breakers turned to stone
Published as: ‘Ringing’, Spring 1995, The Cormorant XI (2)
(revised)
© Jane Tims