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crustose lichen


crustose lichen
Photo Information
Copyright: pedro anahory (anahory) Gold Star Critiquer/Gold Note Writer [C: 99 W: 0 N: 229] (1377)
Genre: Fungi
Medium: Color
Date Taken: 2006
Categories: Lichens
Camera: Canon 30D, Sigma 150mm Macro 2.8 Apo
Details: Tripod: Yes
Photo Version: Original Version
Date Submitted: 2006-12-09 11:17
Viewed: 3201
Points: 4
[Note Guidelines] Photographer's Note
Lichens are symbiotic associations of a fungus with a photosynthetic partner (called a photobiont or phycobiont) that can produce food for the lichen from sunlight. The photobiont is usually either green algae or cyanobacteria. A few lichens are known to contain yellow-green algae or, in one case, a brown alga. Some lichens contain both green algae and cyanobacteria as photobionts;

Lichens are informally classified by growth form into:

crustose (paint-like, flat), e.g., Caloplaca flavescens
filamentose (hair-like), e.g., Ephebe lanata
foliose (leafy), e.g., Hypogymnia physodes
fruticose (branched), e.g., Cladina evensii, C. subtenuis, and Usnea australis
leprose (powdery), e.g., Lepraria incana
squamulose (consisting of small scale-like structures, lacking a lower cortex), e.g., Normandina pulchella
gelatinous lichens, in which the cyanobacteria produce a polysaccharide that absorbs and retains water

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Critiques [Translate]

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  • Alex99 Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 4072 W: 133 N: 7096] (23735)
  • [2006-12-09 12:28]

Hi Pedro.
Your pictures are really cognitive.
I am an mathematical economist. But my first mathematic model was model of growth of micro seaweed and processes of photosynthesis. How interesting to see such work and note to it. I am very pleased. Nice colourful well detailed shot with excellent note.
My best regards and TFS.
Alexei.

Hello Pedro,

Very interesting mixture of colours and granular patterns on your photo. Great clarity and details. Lichens are spectacular, and to bad that they are often overlooked by many photographs. You just gave me the ideea to check my photo library to post one here myself!

Cheers, Petru

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