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Nearly everlasting ...
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| Information sur la photo |
Copyright: Frank Kaiser (buin)
![Silver Note Writer [C: 6 W: 0 N: 10]](http://i1.treknature.com/misc/n-n-s.gif) (60) |
| Genre: Fungi |
| Média: Couleur |
| Date de prise de vue: 2007-12-08 |
| Catégories: Fungi |
| Exposition: f/2.8, 1/25 secondes |
| More Photo Info: [view] |
| Map: [view] |
| Versions: version originale, Workshop |
| Date de soumission: 2008-01-05 7:18 |
| Vue: 1056 |
| Points: 2 |
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| [Ligne directrice - Note] Note du photographe |
This is a lichen. They always fascinated me because of their sometimes incredible age. They are very slow in growth and they can reach an age of up to incredible 4.500 years - scientifically proven in Greenland!
My photo shows a foliose lichen, a quite special creature, a symbiosis of one fungus (myobiont) and one or several partners (phytobiont) which practice photosynthesis (utilisation of sunlight energy). This partner/s are special species of algae or bacteria. The name of the lichens always is derived from the name of the fungus, because it gives form and structure to the creature. The fungus quasi provides the house where the partners live in and one can't live without the other. So my declaration "fungi" isn't quite exact. Lichens are very varied in colours and shape and form. I've only read a bit about these primitive beings, but the science of lichens seems to be very interesting and multifaceted.
Natural science says that they are no plants. Lichens have been classified between plants and fungi. It is said, that the existence of lichens is a sign of sufficient humidity and pure air.
I found this interesting thing on an trunk of an oak. It had a length of about 15 cm and a hight of about 4 mm. They often also grow on stones, old walls or roofs.
In the workshop you can see another lichen and a closeup. |
uleko, pierrefonds trouve(nt) cette note utile
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- uleko
![Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 2988 W: 162 N: 933]](http://i1.treknature.com/misc/g-g-g.gif)
(2743) - [2008-01-05 7:38]
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Hello Frank,
What a splendid capture of this lichen on Oak. Excellent sharp details and beautiful colours. I'd guess it is Parmelia sulcata that is common on deciduous trees. Good note too!
Many thanks and regards, Ulla
