TrueToad Digital Imaging, News and Reviews, Nikon, Camera Lens Reviews, Nikkor,
TrueToad / Tuesday, January 3, 2017 / Categories: The Photography Blog, Macro Photography


Life & Nature

I find Lichen fascinating to look at and intriguing to study the survival strategy it uses to flourish, and what ultimately causes it to grow in what seemingly appears to be almost any location.  As of this posting I cover two years of Lichen Life, and captured a few photos along the way.

When encountering the various types, shapes, textures of Lichen one would come to a conclusion that attempting to gain a layman knowledge of Lichen would be a daunting task.  Well, good news is, there are 6 basic categories of Lichen, depending on who you ask.  I list four that are commonly found in the wild, One type not listed is the "gelatinous" type, which for me can be confused with fungal growth in general.

  • crustose - The crustlike, growing closely to where it is attached
  • squamulose - The close clustered and slightly flattened pebble-like growths
  • foliose - The leaflike, growth not too tightly grouped together
  • fruticose - free-standing branching tubes of growth​



Tree Lichen about 3 inches long growing on a tree branch during the winter time
What is Lichen? Lichen is basically an organism that is formed by filaments of it's fungal partner, normally consisting of various shades of greens, grey, and in some instances reds.   On the outer surface you see mostly the fungal mass, which can not by itself process light to generate its nourishment. Thus the underpinning of Lichen is the alga which provides food to the fungal matter. Together the fungal and alga depend on each organism in order to survive. In short the fungal protects the alga with a protective shell that absorbs ultraviolet light, allowing this fascinating partnership to survive in unlikely places.

Grey or Green - depending on the availability of moisture the fungal cortex will become transparent as moisture is about and what you see underneath is mostly the green alga doings it business, and thus appear green.



Lichens are a complex life form that is a symbiotic partnership of two separate organisms, a fungus and an alga.
One odd fact I learned about Lichen is some types will only flourish in the most pristine of air quality - which make it excellent indicator of the overall quality of the environment.  Lichen also can be asexual e.g., a small bits floats off and begins a new Lichen or through a microscopic process called soredia. So, how long do Lichen live? The jury is still out on that - but we do know Lichen can live for many many years. What normally impacts the growth of lichen like so many other things in nature is human activity. It has been reported some growths of Lichen are still going after a 100 years.

Rate this article:
  • Nikkor 60mm f/2.8 ED Macro
  • Nikkor 105mm f/2.8G IF-ED Micro
Camera Body
  • Nikon D500
  • Nikon D810
Flash Used
  • SB-5000
  • SU-800
Accessories Used
  • R1C1 Wireless Close-up system
  • WR-A10 Wireless Adapter


I live at the edge of the forest in semi-moist locations, I enjoy larva, and other delights. Although I am toothless and mostly warty, I am a sight to see.

Other posts by TrueToad
Contact author

Please login or register to post comments.


Nikon Magnifying Eyepiece DK-17M

Fujifilm XT-2 Camera Review

My thoughts about the Fujifilm XT-2 from a DSLR shooter perspective.  Why I think this camera line is amazing and worth your time and attention to take a few minutes... Read more

Fujifilm X-E3 Camera Review

This is my second true mirrorless camera system, and this time around I choose Fujifilm over the crowded competition. For the last year I have been poking around looking... Read more

Nikon Magnifying Eyepiece DK-17M

The Nikon DK 17M magnifying eyepiece for your specialized work in Macro photography, and especially when using a manual focus lens. Gives you excellent views to ensure you... Read more

Nikon D850

Buy a Nikon D850

Nikkor 400mm ED FL Lens


Great Gear

Terms Of UsePrivacy StatementCopyright 2017 TrueToad
Back To Top