Observation 34343: Cladonia grayi G. Merr. ex Sandst.
When: 2010-02-28
Herbarium specimen reported

Notes: Location: 35°13’49.26"N 85°57’47.14"W el. 575 m, Dotson Point Trail.

Substrate and habitat: Growing in a layer of mosses and mineral soil only a few mm thick on the surface of a low-lying, flat-topped sandstone rock, in oak-hickory woodland on the western rim of the Cumberland Plateau.

Identification: These are pixie cup lichens, with deep cups and granular soredia, so they are tentatively assigned to the Cladonia chlorophaea group, which in our area includes C. grayi, cryptochlorophaea, humilis, and chlorophaea. TLC is necessary for identification to species. In the Ozarks, C. grayi is the most common representative of this group (Harris and Ladd, 2005, p.101).

Voucher specimen:
United States, Tennessee, Franklin County, Sewanee, Dotson Point Trail. 28 Feb 2010. Chris Parrish 0069, det. James C. Lendemer (NY).

Common name: pixie cup lichen

Proposed Names

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Eye3 Eyes3
Used references: Voucher specimen identified by James C. Lendemer (NY).

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Eye3 = Observer’s choice
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Comments

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UV reactions
By: Chris Parrish (kitparrish)
2010-06-10 06:36:33 EEST (+0300)

Interesting thought. I have a UV flashlight, and I know where these pixie cups live, so I will be looking into that. McCune and Geiser give a table of UV reactions for the Cladonia chlorophaea group in the Pacific Northwest (2009, p.84), but I have not found similar information for anywhere else.

UV?
By: Jason Hollinger (jason)
2010-06-09 19:48:14 EEST (+0300)

I seem to remember reading somewhere that is supposed to be UV+ white. Did you note any unusual UV on this one?

Created: 2010-02-28 08:31:39 EET (+0200)
Last modified: 2010-06-09 09:50:06 EEST (+0300)
Viewed: 342 times, last viewed: 2016-10-26 04:09:25 EEST (+0300)
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