HYALINUS Wils. & Hook.
HABIT: Ephemeral, minute (1.5-3.0 mm), delicate,
pale green or hyaline plants growing as scattered or gregarious individuals.
SPECIES: No other Fissidens can
be confused with F. hyalinus.
RANGE: PA, LA, OH; also Mex., n. South America, Japan.
RANGE: Three Ohio records have been
reported for this rare species. The
type collection was reported to have been collected in the vicinity of Cincinnati. However, the actual collecting site, along
Bank Lick creek, is in northern Kentucky.
The second collection is from Lake County, and was made in the late
1800s. The most recent record (1989)
is from Hocking County.
STATUS: 1990-1991: Added, 1992 to
HABITAT: Cool, moist sheltered forest ravines on clay
HAZARDS: Drying of the habitat; removal of forest
GUIDELINES: Collect only minute samples
and only after spore release.
COMMENTS: Fissidens hyalinus is an extremely
rare (or rarely collected) species. It
has been collected in only two counties in Pennsylvania, and a single
collection has been reported from Louisiana.
Two collections exist from Kentucky (including the type collection), and
two from Ohio. It appears to be quite
ephemeral, lasting only a few weeks at most.
It appears to mature in early to mid September.
and L.E. Anderson. 1981. Mosses of Eastern North America. Two vols.
Columbia University Press.
W.D. 1983. Mosses of the Gulf South.
Louisiana State University Press.
Division of Natural Areas and Preserves
Ohio Department of Natural Resources
Jerry A. Snider