Observation 33602: Parmotrema perforatum (Jacq.) A. Massal.
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 (This differs from the chemistry mentioned in Brodo, 2001, p.499):
Cortex: C-, K-, KC-, Pd-
Medulla: C-, K+ yellow, KC+ reddish orange immediately, then fading; Pd+ bright deep yellow

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

Voucher specimen: United States, Tennessee, Franklin County, Sewanee, Woodlands. 07 Feb 2010. Chris Parrish 0046, det. James C. Lendemer (NY).

Common name: perforated ruffle lichen

Species Lists


lobe, forked rhizines, 20x
lobe, forked rhizines, 25x
perforated apothecium, 32x
brown lower cortex, black near the center, and with broad white patches near the margins, 7.1x

Proposed Names

28% (1)
Eye3 Eyes3
Used references: Brodo, Sharnoff, and Sharnoff, 2001, pp.498-499; Harris and Ladd, 2005, pp.170-171

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Eye3 = Observer’s choice
Eyes3 = Current consensus


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Created: 2010-02-15 00:29:20 CST (-0500)
Last modified: 2010-02-15 00:29:20 CST (-0500)
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