Observation 116368: Massalongia carnosa (Dickson) Körber

When: 2012-03-21

Collection location: Stebbins Cold Canyon Reserve, Solano Co., California, USA [Click for map]

Who: Byrain

No specimen available

Growing on a mossy rock, off-trail near the creek.

Proposed Names

1% (2)
Recognized by sight

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Eye3 = Observer’s choice
Eyes3 = Current consensus


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You would have to ask, wouldn’t you
By: Jason Hollinger (jason)
2012-11-11 11:56:00 PST (-0800)

This species bewilders me. I just dump everything that doesn’t belong to the groups I know into this species! :) This is from the Sonoran Flora:


The key features seem to be: blue-green algae, elongate lobes (longer than wide, versus squamules), margins lobulate but often appearing to be sorediate (to me), lower surface with ±pale tomentum (no rhizines, no black felty underlay spreading beyond the margins of the thallus), almost always growing on moss.

Massalongia carnosa
By: Byrain
2012-11-11 08:23:19 PST (-0800)

Seems like a possibility, I do wish there were more big pictures of it online though, I’m mostly seeing tiny Sharnoff pics which aren’t very useful for me. :/

I’ll see if I can find it again and add some more pics, I would like to see what the rhizines look like and take a closer look for apothecia now that I know what they look like. Anything else I could check for?

By: Jason Hollinger (jason)
2012-11-10 22:59:53 PST (-0800)

I’m ruling out Pannaria because it’s too dark brown. I’m ruling out Fuscopannaria because it’s clearly foliose, not squamulose. Parmeliella is also very small and squamulose. Protopannaria pezizoides is abundantly fertile. I think that exhausts the options.

Created: 2012-11-10 18:46:34 PST (-0800)
Last modified: 2012-11-10 23:01:09 PST (-0800)
Viewed: 45 times, last viewed: 2018-02-25 06:41:57 PST (-0800)
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