Observation 17526: Flavoparmelia baltimorensis (Gyelnik & Fóriss) Hale
When: 2009-01-30
Herbarium specimen reported

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

Substrate: This is one of the most abundant lichens on exposed horizontal surfaces of sandstone rocks and bluffs in this area of the western escarpment of the Cumberland Plateau.

Habitat: Rich, oak-dominated, eastern deciduous hardwood forest.

Photos:
Dotson Point Trail, 30 Jan 2009: 35391-35395
Dotson Point Trail, 12 Mar 2009: 39006-39021

Chemistry:
cortex C-, K-, KC+ indeterminate dirty yellow
medulla C-, K-, KC+ pink immediately, fading fast

Characterization: saxicolous yellowish green shield lichen with
(1) characteristic “advancing wave” pattern in shades of yellowish green
(2) crowded isidia (“pustules resembling isidia,” Brodo, p.138) in center of thallus and along radial ridges and folds;
(3) occasional laminar black pycnidia and small, cup-like, raised apothecia(?) with whitish margins;
(4) jet black undersurface; tan under outermost marginal lobes;
(5) firmly appressed, but can be removed largely intact with patience

Voucher specimen: Tennessee, Franklin County, Sewanee, Dotson Point Trail, 12 Mar 2009, Chris Parrish 0005, det. Gary Perlmutter (NCU)

Common name: rock greenshield lichen

Species Lists

Images

35391
Dotson Point Trail, 30 Jan 2009
35392
Dotson Point Trail, 30 Jan 2009
35393
Dotson Point Trail, 30 Jan 2009
35394
Dotson Point Trail, 30 Jan 2009
35395
Dotson Point Trail, 30 Jan 2009
39006
“pustules resembling isidia,” 7.1x
39007
“pustules resembling isidia,” 12.5x
39008
“pustules resembling isidia,” 16x
39009
“pustules resembling isidia,” 20x
39010
“pustules resembling isidia,” 20x
39011
“pustules resembling isidia,” 32x
39012
pustules and pycnidia, 12.5x
39013
pustules and apothecia (?), 32x
39014
apothecia (?), 40x
39015
maculae, 16x
39016
pycnidia, 63x
39017
pycnidia, 115x
39018
undersurface, 12.5x
39019
undersurface, 25x
39020
undersurface, 25x
39021
undersurface, 50x

Proposed Names

28% (1)
Eye3
Used references: Brodo, Sharnoff, and Sharnoff, pp.733-742 and Xanthoparmelia images on MO
56% (1)
Eye3 Eyes3
Used references: Brodo, Sharnoff, Sharnoff, pp.316-317

Please login to propose your own names and vote on existing names.

Eye3 = Observer’s choice
Eyes3 = Current consensus

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Created: 2009-01-31 09:48:25 PST (-0800)
Last modified: 2009-01-31 09:48:25 PST (-0800)
Viewed: 271 times, last viewed: 2016-10-26 07:38:33 PDT (-0700)