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Toad Lichen

Melanohalea exasperata

Photo by arlanda
Published on Project Noah
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40.54, -3.68792

Field Notes

Description:

Foliose lichen. Thallus olive- to red- or dull brown, matt to moderately shiny, surface with abundant and very evenly distributed, minutely flat-topped papillae (warts) (not breaking away so technicaly not isidia, though the tops may lose their cortex to form pseudocyphellae); apothecia frequent, sometimes abundant enough to obscure the thallus, moderately large, with brown to olive discs and distinctly papillate (warted) margins.

Habitat:

On branches and twigs, very rarely rocks.

Notes:

Camera Model: NIKON D300. Exposure Time: 1/60 sec.; f/32; ISO Speed Rating: 800. Exposure Bias: 0 EV. Focal Length: 90.0 mm. Flash fired

Reference Links:

Melanohalea exasperata (images of British lichens)

Species ID Suggestions

Comments (5)
arlanda
Well Mark, apparently, the scientists decided that two species from the genus Melanelia should be countetd as different genus: Melanelixia and Melanohalea, both Melano because they come from Melanelia, Melanelixia dedicated in honour of John A. Elix for his immense contributions to lichen systematics and chemistry, especially in Parmeliaceae and Melanohalea in honour of the father of modern studies on the Parmeliaceae, Mason E. Hale jr. Scientists! They can take the fun away from anything! I still do not know the reason for exasperata!!!
Mark Ridgway
Wow you're right... black* exasperation :-) (does the *halea bit mean anything to you in Latin?)
arlanda
I agree Mark. But look at the Latin name, exasperated?
Mark Ridgway
I can't suggest a better name for this one. :-)

Spotted for Missions

Mission
Lichens
Mission
Biodiversidad en España/Spain

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Photographed
PublishedMarch 11, 2014

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