Amphidium californicum

(Hampe ex Müller Hal.) Brotherus in H. G. A. Engler and K. Prantl

in H. G. A. Engler and K. Prantl, Nat. Pflanzenfam. 215[I,3]: 460. 1902

Basionyms: Zygodon californicus Hampe ex Müller Hal. Bot. Zeitung (Berlin) 20: 361. 1862
Treatment appears in FNA Volume 28. Treatment on page 39.
Plants 1–4 cm. Stem leaves linear-lanceolate, 1.5–4 mm; margins recurved, toothed or entire proximally, toothed or notched distally; basal laminal cells yellowish, walls thick; distal cells 9–11 µm, slightly obscured by papillae, papillae elliptic, small. Sexual condition dioicous; perichaetial leaves elongate, narrow, base subsheathing, apex long-pointed. Seta 1.5–2 mm. Capsule immersed to emergent, 1.2–1.6 mm; operculum conic-apiculate, less than diam. of capsule. Spores 10–15 µm.

Habitat: Crevices of neutral to acidic rock
Elevation: moderate elevations


V28 43-distribution-map.gif

B.C., Calif., Idaho, Oreg., Wash.


Amphidium californicum is distinguished by the linear leaves with notched distal margins. Amphidium lapponicum has decidedly broader leaves and distal cells obscured by large, warty, cuticular papillae.

Selected References


Lower Taxa


AuthorDale H. Vitt +
Authority(Hampe ex Müller Hal.) Brotherus in H. G. A. Engler and K. Prantl +
BasionymsZygodon californicus +
DistributionB.C. +, Calif. +, Idaho +, Oreg. + and Wash. +
Elevationmoderate elevations +
HabitatCrevices of neutral to acidic rock +
IllustrationPresent +
Illustration copyrightFlora of North America Association +
IllustratorPatricia M. Eckel +
Publication titlein H. G. A. Engler and K. Prantl, Nat. Pflanzenfam. +
Publication year1902 +
ReferenceNone +
Source xml grained fna xml/V28/V28 43.xml +
Special statusEndemic + and Illustrated +
Taxon familyOrthotrichaceae +
Taxon nameAmphidium californicum +
Taxon parentAmphidium +
Taxon rankspecies +
VolumeVolume 28 +