SAXICOLA (Web. & Mohr.) BSG
Rock-loving Swan-necked Moss
HABIT: Very tiny (1-3 mm), perennial, rock-growing
mosses that produce sinuous, curved (cygneous) sporophytes resembling the
arching necks of swans.
SPECIES: This species, when lacking
sporophytes, is very similar to Rhabdoweisia crispate, another
rock-growing moss commonly occurring in sandstone gorges of southeastern
Ohio. It can be separated from the
latter most easily only with the use of microscopic characters.
RANGE: N.S., Prince Edward Island, NY,
NJ, in the Appalachians to SC, inland to s. OH, KY, TN, AR, WA; also England,
Scotland, central Europe, Japan.
RANGE: Pre-1960 collections are from
Gallia, Pickaway, Scioto, and Washington counties. One post-1960 record exists for Hocking County.
STATUS: 1990-1991: Added, 1992 to
HABITAT: On siliceous boulders and moist cliff ledges
in gorges and ravines of hardwood forests.
HAZARDS: Removal of forest canopy shading rock
exposures; drying of habitat.
POTENTIAL: Unknown, but as numerous
sporophytes are generally produced, it is presumably good.
GUIDELINES: Collect complete specimens,
including sporophyte, if available.
COMMENTS: This species, when sterile, can easily be
confused with Rhabdoweisia crispate, which occupies identical
habitats. The latter typically has
broader, shorter leaves when viewed under slight magnification.
and L.E. Anderson. 1981. Mosses of Eastern North America. Two vols.
Columbia University Press.
R.R. 1982. Moss Flora of the Maritime
Provinces Botany, No. 13.
Division of Natural Areas and Preserves
Ohio Department of Natural Resources
Created: 3/1990 Jerry A. Snider
Database Code: SPPB.421