Observation 94930: Cladonia P. Browne

When: 2012-05-02

Collection location: Turnbull National Wildlife Refuge, Spokane Co., Washington, USA [Click for map]

0.0° 0.0° 2364m

Who: nastassja (Nastassja Noell)

Specimen available

Another sample of the Cladonia spp. from Turnbull… this one doesn’t have squamules on the podetia – instead heavily sorediatiated, and these podetia are far shorter.

Collection #: TNWR-04-05022012-NN

Substrate: soil, on top of 1cm high soil bumb.

Seems common, but difficult to find specimens with podetia.

Apothecia: brown, around rim of cup or at tip of non-cupped podetia.

Cups: up to 1mm in diameter, most 0.5-1.0mm. Largest cups seem to not be more than 2.5x the width of supporting podetia.

Soredia: granular, up to 0.1mm diamter; all over (upper, lower podetia, and inside cup), seems like the large masses of soredia are pathcy.

Podetia: brownish. covered in isidiate soredia, some parts look like papillae. These do not have the squamules like the other mysterious Cladonia sp. listed here for Turnbull.

Squamules: brownish, some green. Lacking lower cortex. up to 2mm across.

Using Lichens of British Columbia (Goward 1999): I got to Group G (PODETIA SOREDIATE OR GRANULAR, NARROWLY CUPPED, NOT YELLOWISH), and got stuck on cuplet #8: the podetia is not distinctly brownish near the base, nor is it anywhere west of the Coastal Range :) … Even tried Group F (PODETIA SOREDIATE OR GRANULAR, BROADLY CUPPED, NOT YELLOWISH), and hit another dead end since the granular soredia is not restricted to the lower half of the podetia or the cup.

Proposed Names

83% (1)
Eye3 Eyes3
Recognized by sight
Based on chemical features: Podetia surface: PD+yellow to orange-red, K-;
55% (1)
Used references: The Lichens of British Columbia: Fruticose (Goward 1999)

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Eye3 = Observer’s choice
Eyes3 = Current consensus


Add Comment
I’d say Cladonia chlorophaea group
By: Jason Hollinger (jason)
2012-05-19 07:15:55 CST (+0800)

(Including C. humilis, C. asahinea, etc.)

In some situations they won’t produce fully-formed podetia. We have something a lot like this in the chaparral of southern California, too: squat little coarsely-granular cups. But they’re usually abundantly fertile, so I think you’re more likely looking at a dwarfed/aborted form of something else.

(Even with a well-developed specimen, there is little you can say for certain without TLC, alas.)

Created: 2012-05-19 06:15:24 CST (+0800)
Last modified: 2012-05-20 16:30:54 CST (+0800)
Viewed: 140 times, last viewed: 2017-08-16 00:18:18 CST (+0800)
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