Observation 67987: Lichen P. Micheli
When: 2011-05-23
Who: Byrain
No herbarium specimen

Notes: Growing on a stone bridge with several other lichen species and moss. A creek regularly visited by waterfowl and other animals runs underneath it.

Images

147719
147743
I attempted to adjust the colors to memory and this is the result.

Proposed Names

28% (1)
Eye3 Eyes3
Recognized by sight

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Eye3 = Observer’s choice
Eyes3 = Current consensus

Comments

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If it’s Aspicilia…
By: Brendan Hodkinson (brendanhod)
2011-07-31 13:02:10 IST (+0530)

you should at least find a few areoles that have small dark depressions in the centers. This is where the fungal reproductive parts are found. Like with most lichen groups, spore size/shape and the standard chemical spot test results are probably the best features to focus on. There are many species in the genus (over 60 in North America, at least 15 confirmed for California).

I’ve been meaning to…
By: Byrain
2011-07-31 10:27:20 IST (+0530)

…take better pictures of this one now that I have a tripod, what chemical/microscopic features may help narrow this down?

Aspicilia?
By: Brendan Hodkinson (brendanhod)
2011-07-31 09:13:59 IST (+0530)

Aspicilia would be my inclination.

no clue!
By: Jason Hollinger (jason)
2011-05-24 08:49:45 IST (+0530)

I can’t find apothecia, perithecia, soredia, anything.

Created: 2011-05-24 08:08:26 IST (+0530)
Last modified: 2011-05-24 08:08:27 IST (+0530)
Viewed: 55 times, last viewed: 2016-10-25 14:00:24 IST (+0530)
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