Flora of North America species comparison

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Amphidium mougeotii

Mougeot's amphidium moss, Mougeot's amphora moss, Mougeot's yoke-moss
Habit Plants 2–5 cm.
Stem

leaves linear-lanceolate, 1.5–3 mm;

margins plane, entire;

basal laminal cells yellowish, walls thick;

distal cells 5–9 µm, slightly obscured by papillae, papillae elliptic, small.
Seta

2.2–3.5 mm.
Sexual condition

dioicous;

perichaetial leaves elongate, narrow, base subsheathing, apex long-pointed.
Capsule

barely exserted, 1–1.5 mm;

operculum rostrate, greater than diam. of capsule.
Spores

9–12 µm.

Amphidium mougeotii
Habitat Seasonally wet crevices of neutral to acidic cliffs
Elevation low to moderate elevations
Distribution
from FNA
AK; AL; CA; CO; CT; GA; ID; KY; ME; MN; MT; NC; NH; NY; OH; OR; PA; SD; TN; VA; VT; WA; WV; BC; NB; NL; NS; NT; NU; ON; QC; YT; Greenland; Europe; Asia
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Discussion

Amphidium mougeotii has linear, entire leaves and small laminal cells (5–9 µm). The cuticular papillae are numerous and elliptic, and only slightly obscure the distal cells, whereas in A. lapponicum they are larger, warty, and more noticeable.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 28, p. 40.
Parent taxa Orthotrichaceae > Amphidium
Sibling taxa
A. californicum, A. lapponicum
Synonyms Zygodon mougeotii
Name authority (Bruch & Schimper) Schimper: Coroll. Bryol. Eur., 40. (1856)
Web links 
Unless otherwise noted, all data comes from the online version of the Flora of North America, who have made most of their content available via a Creative Commons license (CC BY 4.0).



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