Crispy Apple Moss - Bartramia pomiformis
MNPS Threat Rank
Plant: Dense tufts. Green or glaucous green. Stems 2-10 cm tall, usually branched. Rhizoids papillose and occurring in conspicuous clusters.
Leaf: When dry, leaves crisped and contorted or flexuose to almost straight. Linear-lanceolate, 4-9 mm long, base slightly sheathing, and not clearly differentiated. Margins recurved from base to at least mid-leaf, serrate from apex to below mid-leaf. Teeth single or double. Costa excurrent.
Leaf Cells: In cross-section the laminal cells are of 1-layer and marginal cells are 1-layer to usually 2-layers. Median and upper leaf cells quadrate to rectangular, papillose on the cell lumen. Basal cells usually longer and with papillae on the cell’s end.
Capsules ripen February-November (FNA 2014).
Greenland; Canada: BC, NB, NL, NS, NU, ON, QC, SK; United States: AL, AK, AR, CA, CN, DE, DC, GA, ID, IL, IN, IA, KS, KY, ME, MD, MA, MI, MN, MS, MO, MT, NE, NH, NJ, NY, NC, ND, OH, OK, OR, PA, RI, SC, SD, TN, VT, VA, WA, WV, WI; s South America (Tierra del Fuego); Europe; n, c, e Asia; n Africa; Atlantic Islands (Madeira) (FNA 2014). In Montana, known from Flathead, Glacier, Lake, Lincoln, Missoula, Prairie, and Sanders 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)
On soil, soil over rock, rock and rock crevices, logs and bottoms of trees, in shady damp woods. From low elevations to 6,000 feet (FNA 2014).
Seta is 6-18 mm tall. Capsules green and erect when young, becoming brown, horizontal, zygomorphic, ribbed when dry, and 1.5-2 mm long in maturity.
- Literature Cited AboveLegend: View Online Publication
- Elliott, J.C. and A.K. Pipp. 2018. A Checklist of Montana Mosses (1880-2018). Updated 3 January, 2020. 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.