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Free Teacher & Student Image Resources 
of Lichen & Mosses

Did you know....

that Lichens are made up of 2 or even 3 organisms which have a symbiotic relationship with each other.  Most of the lichen is made up of fungal filaments, but living among those filaments are algal cells. Lichens are made up of fungus + a photosynthesizing alga.  Sometimes the combination is a fungus + a photosynthesizing "bacterium" called "cyanobacterium". While some fungus and some alga are found living without their partner, many other lichens cannot survive on their own. Lichens grow all around the world, living on almost any inanimate object. They are one of the hardiest organisms on Earth.

Confused?  Here's a simple story used by many educators to explain symbiotic relationships within lichens.  Students will learn that lichens are "dual organisms" made up of fungus and algae.

 

The Story of Freddie and Alice

Alice Algae was a terrific cook who could whip up fabulous food from thin air.  Sadly, however, she had no home.  One day Alice Algae met Freddie Fungus who could build a home out of any material, but alas, did not know how to cook and feed himself.

Well, as the story goes, they immediately took a "lichen" to each other.  Alice Algae began to feed Freddie Fungus and Freddie maintained their home.  Although their marriage was sometimes "on the rocks", they lived symbiotically ever after.

 

 

 

In short, lichens marry fungi and algae in a partnership that benefits both sides -- Fungi provide water and minerals, while algae use photosynthesis to make food.

Learn more on the FreeTiiuPix All About Lichen page here.

 

*** Warning ***

I wrestled with the option of whether or not to try to identify and place names to my lichen images.  The study of lichens is done by scientists known as "Lichenologists"  who have many years of education and specialize in identification.  

Although there aren't many lichen that are poisonous, there are some that are high in vulpinic or usnic acid and they are toxic.  

While I have tried to link images with lichen names, I am not a specialist in this field.  I have used books and images to try to look up, categorize and name the various species.  My identification should in no way be relied upon as accurate. YOU alone are responsible for properly identifying any lichen that you may be interested in.  I have attached names to images which I merely THINK resemble the species.

I am grateful for corrections to taxonomic determinations, please contact me at FreeTiiuPix

 

 

Lichen

All About Lichens


Acarospora or 
Pleopsidium Genus

7 images


Algae - Pleurococcus?

6 images


Buelia Genus

10 images


Cladina rangiferina
[Reindeer Lichen]

6 images


Cladonia coniocrae
[Powder Horn Lichen]

4 images


Cladonia cristatella
[British Soldiers]

8 images


Cladonia pyxidata
[Pixie Cup Lichen]

3 images


Evernia Mesomorpha
[Spruce Moss Lichen]

10 images


Parmelia sulcata
[Waxpaper, Shield or 
Cracked Lichen]

4 images


Peltigera Genus

2 images


Umbilicaria mammulata
[Rock Tripe]

18 images


Xanthomendoza fallax
[Hooded Sunburst Lichen]

3 images


Xanthoparmelia Genus

8 images

Is this a Lichen?
Monotropa uniflora
[Indian Pipe]

18 images

Mosses - Bryophytes

On my bucket list is the redesign of the entire moss section of this website as well as several moss photography trips next spring and summer.  I shall try to follow a few specific specimens through the growing season.  In the meanwhile, please enjoy the successful (I think) identification of the following species in alphabetical order followed by some unidentified mosses.  Please let me know if you can positively identify anything for me.

What is a bryophyte?

Aulacomnium palustre -  Ribbed Bog Moss

8 images

Ceratodon purpureus -
Fire Moss ?

2 images

Leucobryum -
Pin Cushion Moss

3 images

Polytrichum juniperiunum - Juniper Moss ?

4 images

Ptilium crista-castrensis 
-
Plume Moss  ?

2 images

Tillandsia usuneoides - Spanish Moss ?

2 images

Unidentified Mosses

23 images

 

 

 

 

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CONTACT ME

If you'd like to drop me a note to let me know if any of these images have been useful, I'd love to hear from you. I'm curious to see if my snapshots have been of benefit to you in some way.  Also, I'd like to hear what kind of images you'd like to see more of. 

 

 



 

 

Lovely Lichens &
Magnificent Mosses

 

 

 

 

 

 

 

Lichens - Two types of organisms living together - a fungus and an alga.  The fungus makes the body that protects the alga, and the alga provides the food for the fungus.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Thoreau once wrote:  "I find myself inspecting little granules as it were on the bark of trees - little shields or apothecia springing from a thallus - such is the mood of my mind - and I call it studying.

 

 

 

 

 

 

 

 

 

 

Classification - 

Lichens were problematic for biological classification but are now classified as fungi under the genus and species of the host fungus.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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