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.

CNALH photos of Porpidia
Sharnoff photos of Porpidia
Irish Lichens photos of Porpidia

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


Add Comment
I may be confused
By: Jason Hollinger (jason)
2012-01-21 17:46:16 CST (-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 CST (-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 CST (-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 CST (-0500)
Last modified: 2012-01-21 15:01:55 CST (-0500)
Viewed: 108 times, last viewed: 2016-01-21 23:07:22 CST (-0500)
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