Lichens of North Carolina

Scientific Name:	Common Name:		Family (Alpha):

Punctelia rudecta - Rough Speckled Shield Lichen PARMELIACEAE Members:			NC Records	Public View

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Image by Jason Hollinger

Image by Gary Perlmutter

Distribution Records

synonym

taxonomic_comments

Type specimen from Swain County, Great Smoky Mountains National Park (Alors et al. 2016, PLoS ONE 11(2): e0146537).

species_comment

id_comments

structural_features

fld_guide_descriptions

Thallus foliose, medium sized, to 8 cm; rosette-forming; lobes flat, linear to subirregular, spreading, 4-7 mm; upper surface bluish gray or pale blue-greenish, shiny, sometimes cracked; lobe edges rounded, tinged with brown; pseudocyphellae white, common, round to irregular or elongate, sometimes coalescing. Isidia occasional to frequent, short, smooth and corticate, simple to forked or coralloid, brown-tipped, often arising from pseudocyphellae and cortical cracks. Lower surface pale, white to flesh-colored or brownish; rhizines simple to forked, same color as the lower surface or white. Ascomata lecanorine apothecia, rare; pycnidia not seen. CHEMISTRY. Upper cortex K+ yellow, C-, (atronorin); medulla K-, C+ red (lecanoric acid).

online_photos

distribution_reference

technical_reference

Lendemer, J.C. & N. Noell. (2018) Delmarva Lichens: An illustrated manual. Memoirs of the Torrey Botanical Society 28: 1-386. Nash, T.H., B.D. Ryan, C. Gries & F. Bungartz (eds.) (2004) Lichen Flora of the Greater Sonoran Desert Region. Vol 2.

abundance

This among the most abundant lichens on partially exposed trees.

distribution_comments

This is among the most widely distributed lichens in North Carolina, found throughout the state.

checklist_mt_high
>=4,000 ft.

Regular	Frequent	Infrequent	Occasional	Seldom	Frequency Regular – almost always observed on given visit; >=90% chance of observation Frequent – usually observed on a given visit; >=50%<90% chance of observation Infrequent – observed less than 50% of visits; >=25%<50% chance of observation Occasional – observed on only on a small minority of visits; >=10%<25% chance of observation Seldom – not usually seen on visits; <10% chance of observation These terms refer to visits to appropriate habitats made at appropriate times of the year, making use of common sampling/observation methods. Under those conditions, Frequency refers to the chance of observing at least one individual on a given visit made anywhere within a particular region, or over multiple visits to a single site.

checklist_mt_low
<4,000 ft.

Regular	Frequent	Infrequent	Occasional	Seldom

checklist_pd
Piedmont

Regular	Frequent	Infrequent	Occasional	Seldom

checklist_cp
Coastal Plain

Regular	Frequent	Infrequent	Occasional	Seldom

habitat

Corticolous on trunks and branches of various trees, mostly hardwoods in shaded forests, rarely saxicolous on shaded rocks.

observation_methods

Thalli can be observed on tree trunks or fallen limbs and branches.

state_protection

NHP_ranks

NHP_status

status_comments

Photo Gallery for Punctelia rudecta Rough Speckled Shield Lichen
	Recorded by: Gary Perlmutter et al. Chatham Co. Comment:	Recorded by: Brenda L Wichmann Columbus Co. Comment:
	Recorded by: Gary Perlmutter Durham Co. Comment:	Recorded by: Gary Perlmutter Durham Co. Comment:
	Recorded by: Gary Perlmutter & Scott LaGreca Durham Co. Comment:	Recorded by: Granville Co. Comment:
	Recorded by: Harnett Co. Comment:	Recorded by: Haywood Co. Comment:
	Recorded by: Moore Co. Comment:	Recorded by: Randolph Co. Comment:
	Recorded by: Gary Perlmutter, Jason Hollinger & Scott LaGreca Robeson Co. Comment:	Recorded by: Stanly Co. Comment:
	Recorded by: Elizabeth A. Brei Union Co. Comment:	Recorded by: Mark A. Basinger w/ Myra F. Basinger Wilson Co. Comment:

Photo Gallery for Punctelia rudecta Rough Speckled Shield Lichen