Amphidium lapponicum

(Hedwig) Schimper

Coroll. Bryol. Eur., 39. 1856

Basionyms: Anictangium lapponicum Hedwig Sp. Musc. Frond., 40. 1801
Treatment appears in FNA Volume 28. Treatment on page 39.
Plants 0.5–3.5 cm. Stem leaves ligulate-lanceolate, 2–3 mm; margins plane, entire; basal laminal cells clear, walls firm; distal cells 8–11 µm, obscured by papillae, papillae warty, relatively large. Sexual condition autoicous; perichaetial leaves erect, enlarged, base sheathing, apex short-pointed. Seta 1–1.5 mm. Capsule immersed to 1/2 emergent, 0.8–1.3 mm; operculum short-rostrate, less than diam. of capsule. Spores 9–13 µm.

Habitat: Seasonal wet crevices of neutral to acidic cliffs
Elevation: low to high elevations


Greenland, Alta., B.C., N.B., Nfld. and Labr., N.W.T., N.S., Nunavut, Ont., Que., Sask., Yukon, Ala., Ariz., Calif., Colo., Conn., Idaho, Maine, Md., Mich., Minn., Mont., Nev., N.H., N.J., N.Y., Oreg., Pa., Vt., Va., Wash., Wis., Wyo., Europe, Asia.


Amphidium lapponicum differs from the two other North American species by its broader leaves and larger, warty, cuticular papillae that obscure the distal laminal cells. The species is autoicous and frequently fruiting, in which case the immersed to emergent capsules serve to identify it. Additionally, the larger laminal cells (8–11 µm) differentiate this species from the other entire-margined species, A. mougeotii, which has smaller distal laminal cells (5–9 µm).

Selected References


Lower Taxa


Facts about "Amphidium lapponicum"
AuthorDale H. Vitt +
Authority(Hedwig) Schimper +
BasionymsAnictangium lapponicum +
DistributionGreenland +, Alta. +, B.C. +, N.B. +, Nfld. and Labr. +, N.W.T. +, N.S. +, Nunavut +, Ont. +, Que. +, Sask. +, Yukon +, Ala. +, Ariz. +, Calif. +, Colo. +, Conn. +, Idaho +, Maine +, Md. +, Mich. +, Minn. +, Mont. +, Nev. +, N.H. +, N.J. +, N.Y. +, Oreg. +, Pa. +, Vt. +, Va. +, Wash. +, Wis. +, Wyo. +, Europe + and Asia. +
Elevationlow to high elevations +
HabitatSeasonal wet crevices of neutral to acidic cliffs +
IllustrationPresent +
Illustration copyrightFlora of North America Association +
IllustratorPatricia M. Eckel +
Publication titleCoroll. Bryol. Eur., +
Publication year1856 +
ReferenceNone +
Source xml grained fna xml/V28/V28 44.xml +
Special statusIllustrated +
Taxon familyOrthotrichaceae +
Taxon nameAmphidium lapponicum +
Taxon parentAmphidium +
Taxon rankspecies +
VolumeVolume 28 +