HABIT: A small, yellow-green fruticose lichen with flattened
branches. Tips of branches widened, recurved and usually sorediate.
SIMILAR SPECIES: R. farinacea, found on bark or
weathered wood; R. intermedia, branch tips attenuated; R. petrina,
TOTAL RANGE: Boreal and northeastern U.S. Listed as rare by
STATE RANGE: One pre-1945 record from Cuyahoga County;
recent (1993) records from Gallia, Hocking and Meigs counties.
STATE STATUS: 1992-1993: Added, 1994-1997:
Threatened, 1998 to present: Endangered.
HABITAT: Listed as rock and bark in sheltered areas. Recent
Ohio collections have all been from sandstone, either cliff face or boulders
below a cliff. Prefers light shade.
HAZARDS: Habitat destruction.
RECOVERY POTENTIAL: Unknown.
INVENTORY GUIDELINES: Collect several thalli and store in
paper herbarium packet.
COMMENTS: Even where apparently good habitat exists this
species is found only in small patches.
Hale, M.E. 1979. How to know the lichens. Wm. C. Brown
Company Publishers. Dubuque, Iowa. 246 pp.
Taylor, C.J. 1968. Lichens of Ohio. Part 2. Fruticose and
cladoniform lichens. Ohio Biological Survey Biological Notes No. 4.
Ohio Department of Natural Resources
Division of Natural Areas and Preserves
Created: 3/1995 Ray Showman
Database Code: SPQD.L10