Observation 43997: Lichen P. Micheli

When: 2010-04-03

Collection location: Port Dover, Ontario, Canada [Click for map]

Who: Eva Skific (Evica)

No specimen available


Proposed Names

38% (2)
Recognized by sight
28% (1)
Recognized by sight

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= Observer’s choice
= Current consensus


Add Comment
Just guessing based on overall appearance…
By: Jason Hollinger (jason)
2010-04-06 09:36:26 CDT (-0500)

You can verify the ID by checking for:

1. is it pruinose or dusty-looking all over?
2. does it have bottle-brush-like black rhizines (rootlets) underneath (may need a hand-lens)
3. is it breaking down into little granules around the margin

If yes on all three then definitely P. detersa. Another possibility might be Phaeophyscia. (Might be worth checking that it’s not yellowish, orangish or reddish inside if you scratch the surface cortex off.)