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Free Images of Algae

Note on large files:  Very large files may be bigger than your screen.  
Right click on any portion of the image showing and chose "save as". 

 

 

 

*** Warning ***

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 

 

Did you know....

that lichen form as a result of a symbiotic relationship between algae and fungi?  Algae are mostly photosynthetic organisms whose bodies lack leaves, stems and roots (called a "thallus").  Typically, algae is an aquatic plant, but some species grow terrestrially (on the land) in damp habitats on tree trunks, stems or leaves; rock faces; damp soil.  Some species live within the pores of rocks in deserts and rely on the dampness from the night's dew for their moisture.  

Are the images below a type of lichen that is so small in its growth that I cannot yet identify it by sight?  or might this be “Pleurococcus” which is a genus of algae found in the Chaetophoraceae family? 

Pleurococcus is a green, single-celled algae found as a thin green covering on the north, shaded, moist side of trees, rocks, soil and sometimes even fences.  It is usually found near the ground.  It should be stressed that without moisture and humidity, Pleurococcus will dry and die.  Conversely, too much rain will wash off the algae.

 

Green algea mold lichen on rotting tree trunk.

Pleurococcus ?  (Algae - Lichen - 1)

Medium - 640 x 480  Right click on above image and chose "save as".

 Large - 4608 x 3456  -  For the full-size resolution of this image click here.

 

 

Green algae lichen rotting tree trunk.

Pleurococcus ?  (Algae - Lichen - 2)

Medium - 640 x 480  Right click on above image and chose "save as".

 Large - 3264 x 2448  -  For the full-size resolution of this image click here.

 

 

Green mold algae on wood.

Pleurococcus ?  (Algae - Lichen - 3)

Medium - 640 x 480  Right click on above image and chose "save as".

 Large - 3264 x 2448  -  For the full-size resolution of this image click here.

 

 Pleurococcus green algea

Pleurococcus ?  (Algae - Lichen - 4)

Medium - 640 x 480  Right click on above image and chose "save as".

 Large - 3814 x 2860  -  For the full-size resolution of this image click here.

 

 

Green mold on damp tree trunk Pleurococcus

Pleurococcus ?  (Algae - Lichen - 5)

Medium - 640 x 480  Right click on above image and chose "save as".

 Large - 3456 x 4608  -  For the full-size resolution of this image click here.

 

 

Green mold on tree bark

Pleurococcus ?  (Algae - Lichen - 6)

Medium - 640 x 480  Right click on above image and chose "save as".

 Large - 3456 x 4608  -  For the full-size resolution of this image click here.

 

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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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