Bryhnia graminicolor
bryhnia moss
leaves rigidly spreading, narrowly ovate to lanceolate, broadest at 1/6–1/5 leaf length, not or slightly plicate, longer than broad, 0.6–1.1 × 0.2–0.5 mm;
base short-decurrent;
margins serrulate to serrate almost to base;
apex gradually acuminate;
costa to 60–80% leaf length, moderately weak, terminal abaxial spine present;
alar cells subquadrate to short-rectangular, 10–20 × 7–9 µm, walls moderately thick, region of 4 × 4 cells, not pellucid, sometimes obscured by recurved margins, indistinctly differentiated;
laminal cells 25–45 × 5–6 µm, distal corners strongly papillose;
basal cells 7–8 µm wide, region in 2 rows.
0.7–1.5 cm.
inclined, not or slightly curved, 1.6 mm.
13–15 µm.
Bryhnia graminicolor
Bryhnia graminicolor usually grows at low elevations, reaching 900 m in the Appalachian Mountains. There is one collection from Utah: Utah County, Mt. Timpanogos, 2040 m, wet logs, lumber, Flowers 17045 (MO). This is the most western collection of this species, and the habitat is unusual. This discovery was not included by S. Flowers (1973), and mislabeling of the specimen is suspected in this case. Confirmation of the occurrence of B. graminicolor in the western states is necessary.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
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