Showing posts with label Lichens. Show all posts
Showing posts with label Lichens. Show all posts

Thursday, August 4, 2016

Lichens from Halland, Sweden - first collage...


One of my hobbies is to find, photograph and identify lichens...
Here is a small selection of lichens I found during my trip in Sweden.
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http://www.lichen.com/

Sunday, May 8, 2016

Stunning Elora Gorge - a visit

  
Many more trails to discover:


Ferns and mosses covering rocks and large boulders,
as well as lichens.


Friday, October 9, 2015

Before the rain - vor dem Regen...


Laurel Creek



Laurel Creek Conservation Area

Lichens on pine tree
 


Thuidiaceae : Thuidium delicatulum - Delicate Fern Moss

Thuidiaceae : Thuidium delicatulum - Delicate Fern Moss



Tuesday, November 30, 2010

didn't bake cookies, but ... keine Plätzchen gebacken, aber...

but went for a walk in the park...
aber wanderte im Park...

                      Look deep into nature, and then you will understand everything better.
Sieh tief in die Natur und dann verstehst Du alles besser.
(Albert Einstein)



 Walking through Guildwood Park on a nice sunny afternoon in late November 2010.
How long will this beautiful weather last?
Ein Spaziergang durch unseren Guidwood Park im November 2010.
Wie lange wird das herrliche Wetter halten?

Like always I found mushrooms and very interesting objects to take pictures of.
Wie immer, habe ich Pilze und interessante Objekte zum Fotografieren gefunden.


 At the end of my walk through our Guildwood Park I took this picture.
Four weeks ago I used the newly installed path
one of my hiking poles got stuck between the stones, I fell and injured my knee but I am o.k.now.
I always loved this path leading to the lake.
*********
 Am Ende meiner Wanderung fotografierte ich diese Baustelle.
Früher war dies ein herrlicher Waldpfad, den die Statdt Toronto verbessern wollte.
Jetzt ist er geschlossen, wegen Sturzgefahr.
Vor vier Wochen benützte ich den neuen Wanderpfad.
Meine Nordic Walking Poles  sind zwischen den Steinen stecken geblieben.
Ich stürzte und erlitt eine Knieverletzung, bin aber wieder o.k.

Monday, October 29, 2007

frosty Maple Leaf with lichens and mosses


Lichens
Lichens are all around you and are one of the most interesting plants in Open Space.
They grow on rocks, tree trunks and branches.
They don’t live on leaves because more time than one growing season is needed to establish themselves.
The growth rate of lichens has been estimated at one inch per century.

Symbiosis
The most interesting thing about lichens is that they actually consist of two different kinds of living things-an alga and a fungus.
Lichen, therefore, is really a compound creature.
This association is called “symbiosis”.
The fungus is a network of small fungal root-hairs (called “hyphae”) that mechanically protects the algae which, in turn,
produces carbohydrates, organic nitrogen and vitamins, thus providing the fungus with growth materials.
In this manner, both organisms benefit.
In fact, scientists have attempted to separate the lichen fungi and algae and then tried to grow them on their own.
It didn’t work. Neither could grow without the other.

A community of lichens
Look at the picture with the Maple leaf, there is almost no bare rock.
Lichens of different colors cover virtually all of this rock.
Each color indicates a slightly different species of lichens.
Lichens eventually die and, when they do, their decomposition
creates a weak solution of carbonic acid that eats into the rock.
This “rock dust”, mixed with other organic materials makes a thin soil where mosses can grow.
Mosses, in turn, provide a base for grasses and other small plants.
Eventually there is enough soil for bushes and trees to get a toe hold.
In this manner, with time, rocky outcrops turn into soil and become forests.
Lichen, therefore, are “pioneer” plants that start the process of breaking down rocks to produce soil.

Hier ist eine grosse Liste von Weblinks in anderen Sprachen.

Wikipedia Weblinks:

Wiktionary: Flechte – Bedeutungserklärungen, Wortherkunft, Synonyme und Übersetzungen

Commons: Flechten – Bilder, Videos und Audiodateien
Rote Liste der gefährdeten Arten der Schweiz (PDF)
Umfassende Website zu Flechten (englisch)
Flechten Belgiens, Luxemburgs und Nordfrankreichs (englisch)
Checklists of Lichens (englisch)
Chilenische Flechten (spanisch)

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