Cladonia rangiformis

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Steve
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Joined: Sun May 17, 2015 8:59 pm
Location: Sheffield, Yorkshire

Cladonia rangiformis

Post by Steve » Sun Feb 21, 2016 5:05 pm

On heather moorland in Longshaw last week. From a distance it looks like C. portentosa, but I think the "giraffe" spots of green on white are a good ID feature.
Steve
Attachments
Cladonia rangiformis.JPG
Field photo
DSCF0903.JPG
Stereo microscope, light from above
DSCF0904.JPG
Stereo microscope, light from below, showing "giraffe" patterning

Steve
Frequent user
Posts: 442
Joined: Sun May 17, 2015 8:59 pm
Location: Sheffield, Yorkshire

Re: Cladonia rangiformis

Post by Steve » Wed Apr 06, 2016 12:00 pm

Found at Longshaw on moorland sheep pasture, March 2016.
Colour: brownish-grey when dry, green-flecked (giraffe-like) when wet.
Soredia: none.
Podetia texture: few scales, otherwise smooth.
Podetia branching: more than 2 – up to 4, irregular.
Cups: none.
Basal squamules: hardly in evidence.
Apothecia/pycnidia: small, brown.
Split in podetia: not present
Holes in axils: present
At first sight the brown-grey coloration and the holed axils of the dry specimen made me consider Cladonia furcata, but the more-than-dichotomous branching, and the definite “giraffe” patterning of algal patches on the white podetia point to Caldonia rangiformis.
“Holes in axils” seems to be yet another variable feature.
Steve
Stacked.jpg
Stacked image

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