Observation 19077: Parmotrema reticulatum (Taylor) M. Choisy
When: 2009-02-27
No herbarium specimen

Notes: Location: 35°13’21.51"N, 85°57’3.86"W, el. 572 m, Rutledge Point Trail.

Substrate: Growing on sandstone rocks at the rim of the escarpment.

Habitat: eastern deciduous woodland on the western escarpment of the Cumberland Plateau.

Chemistry: cortex C-, K-; medulla C-, K+ yellow, KC-.

Characterization: ruffled lichen with
(1) thallus pale silvery gray
(2) puffy, elliptical soralia perched on the tips of ascending marginal lobes
(3) lower surface black at the center, brown at the edges (accenting the pale soredia)
(4) cortex K+ yellow (atranorin)
(5) medulla K+ yellow or orange

References:
Sharnoff’s Parmotrema reticulatum gallery
CNALH images, description, and locality map, and a larger, interactive locality map.

Common name: powdered ruffle lichen

Species Lists

Images

38159
38160
38161
thallus, 16x
38162
sorediate margin, 16x
38163
sorediate margin, 40x
38164
sorediate margin, 16x
38165
sorediate margin, 25x
38166
sorediate margin, 50x
38167
undersurface, about 16x
38168
undersurface, 16x
38169
undersurface, 32x

Proposed Names

-28% (1)
Used references: Brodo, Sharnoff, and Sharnoff, p.493
-28% (1)
Used references: In the Checklist of NA Lichens, P. chinense is listed as a synonym of P. perlatum. Brodo (2001, p.493) has it the other way around.
28% (1)
Eye3 Eyes3
Recognized by sight: By comparison with MO observation #33597

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

Eye3 = Observer’s choice
Eyes3 = Current consensus

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Created: 2009-03-03 22:33:04 PST (-0800)
Last modified: 2009-03-03 22:33:04 PST (-0800)
Viewed: 374 times, last viewed: 2016-03-21 03:37:58 PDT (-0700)
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