Observation 12717: Cladonia P. Browne

When: 2008-10-16

Collection location: Cape Lookout State Park, Tillamook Co., Oregon, USA [Click for map]

Who: Daniel B. Wheeler (Tuberale)

No specimen available

This tiny ruffled lichen, grayish-green with black underneath the branches, produces these extraordinarily large fruiting structures, among the largest I believe I’ve seen. Plus, the rather flattened stems often branch 3 or more times, producing small cup-like structures that are finely scaled with gray-green lichen dandruff, plus smaller shelf-like protuberances; the interior of the cups are peppermint green. I suspect this may be a Cladonia, but don’t have any references to support that conclusion. If it is indeed a Cladonia, it is extremely large for one in my limited experience.


Proposed Names

-11% (2)
Recognized by sight
89% (2)
Recognized by sight: You’re right, defitely Cladonia. The cups-growing-from-cups is called “proliferation”. I tried my best to key this out in a number of keys, but there are just too many unknowns: chemistry, precise size and distribution of powder/granules on the stems. (The tiny squamules going nearly all the way up the stems are probably also significant.) It’s a tough genus.
48% (2)
Used references: Mosses, Lichens and Ferns of Northwest North America, by Vitt, Marsh & Bovey, p. 204

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= Observer’s choice
= Current consensus


Add Comment
By: himanshurai10
2010-09-21 00:58:08 EDT (-0400)

Seems to me Cladonia verticillata…

By: himanshurai10
2010-09-21 00:56:55 EDT (-0400)

Seems to me Cladonia pyxidata.

Lichens are a wonderful addition to MO
By: R. E. Tulloss (ret)
2008-10-19 23:47:14 EDT (-0400)

I have really been enjoying the addition of the many lichen observations by Daniel and others.


Created: 2008-10-17 03:11:26 EDT (-0400)
Last modified: 2010-09-21 00:56:56 EDT (-0400)
Viewed: 74 times, last viewed: 2019-01-23 13:44:37 EST (-0500)
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