Observation 33480: Parmotrema hypotropum (Nyl.) Hale
When: 2010-02-07
Herbarium specimen reported

Notes: Locality: 35°12’47.92"N, 85°55’20.20"W, el. 586 m. Woodlands.

Substrate and habitat: Growing on a branch of scarlet oak, Quercus coccinea, brought to the ground by recent rain storms, in a park-like residential area bordering oak-dominated eastern deciduous woodland at the western rim of the Cumberland Plateau.

Chemistry: medulla: C-, K+ yellow but wine red where it meets the cortex, KC- (bleaches much of the yellow and red), P+ bright yellow immediately

Identification: Parmotrema with prominant marginal cilia, marginal soredia, dark brown undersurface with ivory white patches beneath several lobes, rhizine-free areas below outer lobes, and medulla staining K+ yellow and red and Pd+ bright yellow.

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

Voucher specimen: United States, Tennessee, Franklin County, Sewanee, Woodlands. 07 Feb 2010. Chris Parrish 0042, det. James C. Lendemer (NY)

Common name: powdered ruffle lichen

Species Lists

Images

77840
77841
marginal cilia and upper surface of lobe, 10x
77842
bifurcate cilia, 25x
77843
undersurface and rhizines, 20x
77844
undersurface and rhizines, 20x
77845
undersurface and rhizines, 12.5x
77846
marginal soralia, 40x
77847
marginal soralia, 50x

Proposed Names

28% (1)
Eye3 Eyes3
Used references: Brodo, Sharnoff, and Sharnoff, 2001, pp.489-502

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Eye3 = Observer’s choice
Eyes3 = Current consensus

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Created: 2010-02-12 00:14:45 MST (-0700)
Last modified: 2010-02-12 00:14:45 MST (-0700)
Viewed: 195 times, last viewed: 2016-11-16 20:19:20 MST (-0700)
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