Meesia Moss - Meesia uliginosa
Broad-leaved Hump Moss
Plant: Scattered or tufted. Dark green to yellow-green, often blackish below. Stems 1-4 cm tall, often branched. Rhizoids papillose.
Leaf: When dry, leaves somewhat contorted. When moist, leaves never squarrose-recurved. Leaves 0.8-4.5 mm long, linear-ligulate, and an obtuse to rounded apex. Leaf size increases from base to top of stem. Margins strongly recurved at mid-leaf and entire. Costa strong and broad at base, 1/3 to 2/3 the width at base.
Leaf Cells: Cells rectangular, 9-13 µm wide. Costa in X-S of large, uniform cells.
Wide costa, revolute leaf margins, and ligulate leaves often distinguish this moss. Both dry and wet, the leaves are erect (FNA 2014).
Greenland; Canada: AB, BC, MB, NL, NT, NS, NU, ON, QC, SK, YT; USA: AK, CA, CO, MI, MT, NY, WI, WY; n Eurasia (FNA 2014). In Montana: Fergus, Flathead, Glacier, and Lake Counties (Elliott 2016).
Observations in Montana Natural Heritage Program Database
Number of Observations:
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(Observations spanning multiple months or years are excluded from time charts)
Wet soil and peat in fens (Elliott 2016) and bogs, and soil-covered rock crevices (FNA 2014), often in alpine or arctic regions, though sometimes in lowlands.
Autoicous. Seta is 1.5-10 cm long. Capsules are up to 4.0 mm long (with neck). Neck is often wrinkled.
- Literature Cited AboveLegend: View Online Publication
- Elliott, J.C. and A.K. Pipp. 2018. A Checklist of Montana Mosses (1880-2018). December 20th. Montana Natural Heritage Program, Helena, Montana. 73 pp.
- Flora of North America Editorial Committee, eds. 2014. Flora of North America North of Mexico. Volume 28. Bryophytes: Mosses, Part 2. Oxford University Press, Inc., NY. xxi + 702 pp.
- Additional ReferencesLegend: View Online Publication
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- Lawton, E. 1971. Keys for the Identification of the Mosses on the Pacific Northwest. Reprinted from 'Moss Flora of the Pacific Northwest'. Published as Supplement No. 2 of the Journal of the Hattori Botanical Laboratory. Nichinan, Miyazaki, Japan. 66 pp.
- Lawton, E. 1971. Moss Flora of the Pacific Northwest. Hattori Botanical Laboratory. Japan: Yamabuki-cho, Shinjuku-ku, Tokyo. 362 pages plus appendices.