Schreber's Dicranella Moss - Dicranella schreberiana
Schreber's Fork Moss,
State Rank Reason (see State Rank above)
D. grevilleana had previously been ranked S1, but is now a synonym for D. schreberiana. Until a full review of the species can be performed, D. schreberiana (previously unranked) will be given the rank assigned to D. grevilleana.
Plants: Growing in tufts, green or with yellow tones (Lawton 1971). Stems 5-20 mm (seldom taller) (FNA 2007).
Leaves: 3 mm or fewer in length; base clasping the stem, obovate to nearly rectangular, narrowing suddenly to the contorted limb (upper leaf); limb spreading up to 90 degrees, the apex slender, obtuse to acute; margins smooth or toothed distally; midrib extending to apex or just beyond, the outer side toothed distally (FNA 2007).
Leaf Cells: Rectangular, 2-3:1, smooth, not porose, with occasionally uneven walls; alar cells undifferentiated (FNA 2007). Previously D. grevilleana
Capsules ripen in fall (FNA 2007 as D. grevilleana).
In Britain and Ireland, c and n Europe, Iceland, Caucasus, Siberia and North America (Smith 1978). Canada: AB, BC, MB, NB, NL, NT, NS, ON, QC, YT; USA: AK, CA, CO, ID, ME, MA, MI, MT, NJ, NY, OH, OR, PA, SD, UT, WA, WI, WY; n, c Europe; Japan; New Zealand; Australia (FNA 2007). In Montana: Flathead and Glacier Counties (Elliott 2016 as D. grevilleana).
Observations in Montana Natural Heritage Program Database
Number of Observations:
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Map Help and Descriptions
(Observations spanning multiple months or years are excluded from time charts)
Damp soil (Elliott 2016 as D. grevilleana) of banks, ditches, cliff fissures. Elevation: medium to high (FNA 2007 as D. grevilleana).
Dioicous (also allegedly autoicous) (FNA 2007 as D. grevilleana). Seta red, single, 7-12(-25) mm, smooth, spiraling when dry. Capsule curved, inclined, 0.8-1 mm; operculum curved and long-beaked (FNA 2007 as D. grevilleana).
- 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.
- Additional ReferencesLegend: View Online Publication
Do you know of a citation we're missing?
- Flora of North America Editorial Committee, eds. 2007. Flora of North America North of Mexico. Volume 27. Bryophytes: Mosses, Part 1. Oxford University Press, Inc., NY. xxi + 713 pp.
- 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.
- Smith, A.J.E. 1980. The Moss Flora of Britain and Ireland. Cambridge University Press, Cambridge. 705 pp.