PERRETICULATA (Räsänen) Wilhelm & Ladd
Reticulate Speckled Shield
SYNONYMS: Parmelia perreticulata
HABIT: A rather large (5-10 cm), sorediate, foliose lichen
with a greenish mineral gray upper surface and tan or pale brown lower surface.
Fovcolate (finely pitted or dimpled) surface with reticulate ridges.
SIMILAR SPECIES: Very similar to P. subrudecta, a
common species without the foveolate and ridged surface.
TOTAL RANGE: Generally south-central U.S.
STATE RANGE: Adams County, first reported in 1982 and
confirmed in 1994.
1996-1997: Added, 1998 to present: Endangered.
HABITAT: Trees in open woods. Ohio population is found on
chestnut oak trees on exposed ridgetop.
RECOVERY POTENTIAL: Good if entire population is not
INVENTORY GUIDELINES: Collect specimens and store in paper
COMMENTS: Some experts consider this species to be a variety
or ecotype of P. subrudecta.
Hale, M.E. 1979. How to know the lichens. Wm. C.
Brown Company Publishers. Dubuque, Iowa. 246 pp.
Ohio Department of Natural Resources
Division of Natural Areas and Preserves
Created: 3/1995 Ray Showman
Database Code: SPQC.L14