Flavoparmelia caperata (L.) Hale
Common greenshield, flavoparmelia lichen
Parents Unknown Genus is not in the current taxonomy
Genus Flavoparmelia
Species caperata Wrinkled
About plant names...
Here in Massachusetts, I see more of these lichens than any others. I haven't found a range
map yet, but as nearly as I can tell, they occur worldwide.
Identification: This widespread lichen grows in
circular patches on tree bark, and sometimes on rock. It is a pale yellow green color on
top, and black below (pale brown on the edges). It is foliose (leaflike), with rounded, overlapping lobes.
The apothecia (fruiting bodies) are goblet-shaped, and up to about ¼″ (6.3 mm) in diameter,
but they are not present very often.
Online References:
The Island Creek Elementary School's Study of Northern Virginia Ecology
Discover Life
CalPhotos
The Stridvall Family Domain
Wikispecies
References:
Walewski, Joe, Lichens of the North Woods , Kollath+Stensaas Publishing, 2007 , p. 107
4/27/2010 · Nashua River Rail Trail, Pepperell, Massachusetts · ≈ 3½ × 2½″ (9.8 × 6.6 cm) ID is uncertain
3/17/2016 · Kibby’s Climb, Beaver Brook Conservation Area, Hollis, New Hampshire · ≈ 8 × 5″ (19 × 12 cm)
9/5/2009 · Willard Brook State Park, Orange Trail, Townsend, Massachusetts · ≈ 12 × 8″ (31 × 20 cm) ID is uncertain
9/19/2009 · Acadia National Park, Bar Harbor, Maine · ≈ 6 × 9″ (14 × 22 cm)
3/17/2016 · Kibby’s Climb, Beaver Brook Conservation Area, Hollis, New Hampshire · ≈ 8 × 5″ (19 × 12 cm)
Older scientific or horticultural names
Parmelia caperata (L.) Ach.
Parmelia cylisphora (Ach.) Vain.
Parmelia flavicans (Tuck.) Tuck.
Parmelia herreana Zahlbr.
Parmelia negativa Gyel.
Pseudoparmelia caperata (L.) Hale
Flavoparmelia caperata description by Thomas H. Kent, last updated 6 May 2023.
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4/7/2010 · Nashua River Rail Trail, Groton, Massachusetts · ≈ 7 × 11″ (18 × 27 cm) ID is uncertain
5/14/2010 · Beaver Brook Association Conservation Lands, Rte. 130, Hollis, New Hampshire · ≈ 8 × 5″ (19 × 13 cm) ID is uncertain
3/17/2016 · Kibby’s Climb, Beaver Brook Conservation Area, Hollis, New Hampshire · ≈ 6 × 9″ (16 × 23 cm)
9/19/2009 · Acadia National Park, Bar Harbor, Maine · ≈ 9 × 6″ (22 × 14 cm)
4/10/2010 · Nashua River Rail Trail, Groton, Massachusetts · ≈ 4½ × 3″ (11 × 7.9 cm) ID is uncertain
5/12/2007 · Pepperell, Massachusetts
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