Observation 86397: Aspicilia candida (Anzi) Hue
When: 2011-07-24
(50.0° 114.0° )
No herbarium specimen

Notes: Location: 50°36’21.49"N, 114°58’49.52"W, el. 2430m. Ptarmigan Cirque is 2 km E of Highwood Pass.

Identification: resembles Porpidia, but there are very few CNALH records of that genus from Alberta.

Photos:
CNALH photos of Porpidia
Sharnoff photos of Porpidia
Irish Lichens photos of Porpidia

[Edit:]
Photos:
CNALH Aspicilia candida gallery
Sharnoff’s Aspicilia candida gallery
Doug Waylett’s photos of Aspicilia candida, Chalky Sunken Disk Lichen, from Ptarmigan Cirque, Kananaskis Country: Waylett 01 Waylett 02

Proposed Names

-28% (1)
Recognized by sight
28% (1)
Eye3 Eyes3
Used references: photos and description of Aspicilia candida by Doug Waylett from the same locality

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Eye3 = Observer’s choice
Eyes3 = Current consensus

Comments

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I may be confused
By: Jason Hollinger (jason)
2012-01-21 17:46:16 EST (-0500)

I see now that the first set of photos does not have as thin a thallus as I thought — the lighting is a bit weird, making the verrucae look like indentations instead. That’s my fault. You might be able to convince me these are two points along a continuum of variation. There is just a certain amount of guesswork in identifying crusts by photo.

[edit: I see why I was confused: notice that the first photo is 180° rotated from the second! The light source is in the bottom left instead of top right. Wow, how easily the eye can be fooled. :)]

two lichens, or just one?
By: Chris Parrish (kitparrish)
2012-01-21 17:38:06 EST (-0500)

Are there two lichens in this set, or just one? The first four photos have immersed apothecia and smooth margins bordered by a thin blue-gray hypothallus. The last three photos show emergent apothecia and a placodioid margin, as you point out. The first set seems a better match for this photo by Doug Waylett, but Doug’s other photo seems somewhat intermediate between the two forms on this page.

Surely the new photos are a different thing?
By: Jason Hollinger (jason)
2012-01-21 15:35:16 EST (-0500)

Look at the margin: The first set of photos has a thin indistinct margins just sort of fading out into nothing. The second set has a thick placodioid margin.

Created: 2012-01-16 00:42:40 EST (-0500)
Last modified: 2012-01-21 15:01:55 EST (-0500)
Viewed: 108 times, last viewed: 2016-01-21 23:07:22 EST (-0500)
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