Roellobryon roellii

(Brotherus) Ochyra

Polish Bot. J. 56: 119. 2011

Basionyms: Mnium roellii Brotherus Bot. Centralbl. 44: 420. 1890
Synonyms: Bryum sandbergii Holzinger Roellia lucida Kindberg R. roellii (Brotherus) A. L. Andrews ex H. A. Crum R. simplex Kindberg
Treatment appears in FNA Volume 28. Treatment on page 187. Mentioned on page 186.
Stems 1–4 cm. Leaves sometimes tinted pink or red proximally, small and scalelike on proximal portions of stem, enlarged distally, rosette leaves 4–7 mm; laminal cells 90–150×30–50 µm; basal cells more regularly rectangular, often somewhat narrower than distal cells; marginal cells narrower, walls thicker, forming somewhat distinct border 1–2 rows wide. Perigonia conspicuous, antheridia abundant, yellow, in disklike heads. Perichaetial leaves similar to stem leaves, smaller. Capsule 4–7 mm.

Phenology: Capsules mature summer–fall (Jul–Sep).
Habitat: Litter and rich humus under trees and shrubs, montane and subalpine coniferous forests
Elevation: low to high elevations (0-3200 m)


V28 300-distribution-map.gif

Alta., B.C., Alaska, Calif., Colo., Idaho, Mont., Nev., Oreg., Utah, Wash., Wyo.


Roellobryon roellii is rare in Alaska, Nevada, and Utah, and is most common in areas south of the Pleistocene ice-sheets in western North America. Coastal Alaskan-northern British Columbia populations probably survived glaciation in refugia. The species has been found near sea level in coastal Alaska but generally occurs at 500–3200 m. Capsules are rare.

Selected References


Lower Taxa


Facts about "Roellobryon roellii"
AuthorJohn R. Spence +
Authority(Brotherus) Ochyra +
BasionymsMnium roellii +
DistributionAlta. +, B.C. +, Alaska +, Calif. +, Colo. +, Idaho +, Mont. +, Nev. +, Oreg. +, Utah +, Wash. + and Wyo. +
Elevationlow to high elevations (0-3200 m) +
HabitatLitter and rich humus under trees and shrubs, montane and subalpine coniferous forests +
IllustrationPresent +
Illustration copyrightFlora of North America Association +
IllustratorPatricia M. Eckel +
PhenologyCapsules mature summer–fall (Jul–Sep). +
Publication titlePolish Bot. J. +
Publication year2011 +
ReferenceNone +
Source xml grained fna xml/V28/V28 300.xml +
Special statusEndemic + and Illustrated +
SynonymsBryum sandbergii +, Roellia lucida +, R. roellii + and R. simplex +
Taxon familyRoellobryaceae +
Taxon nameRoellobryon roellii +
Taxon parentRoellobryon +
Taxon rankspecies +
VolumeVolume 28 +