Laubm. Deutschl. 2: 444. 1892
Nearly worldwide, except Antarctica, temperate to tropical regions.
Species ca. 25 (2 in the flora).
Rhodobryum is characterized by relatively large plants with leaves in a distinct rosette (at least in the flora area), stoloniferous primary stems, and costa with guide cells in two or more layers and stereid band reduced. The leaves are small and scalelike proximally, becoming enlarged and crowded distally; the proximal laminal cells are as long as 100 µm; the medial and distal cells are 25–35 × 50–80 µm; the seta is red or brown, long-exserted, and 2–5 cm; and the capsules are brown to red-brown and slightly curved and narrowed to the sometimes oblique mouth. The chromosomes of Rhodobryum are distinctly different from those of Bryum and Rosulabryum (H. P. Ramsay and J. R. Spence 1996). As in Roellobryon and Rosulabryum, more than one sporophyte can mature from the same perichaetium. Roellobryon differs from Rhodobryum by its lack of stolons, less contorted shiny pale green leaves that are finely rugose, and much larger laminal cells. Robust specimens of Rosulabryum andicola and R. canariense differ in their strongly developed stereid band with a single layer of guide cells, smaller leaves, lack of stolons, and presence of rhizoidal tubers and filiform leaf axil gemmae.
|1||Leaves 18-55 in rosettes, usually more than 20; margins strongly revolute to beyond mid leaf; costal stereid bands distinct, reaching dorsal epidermal layer, without intervening layer of thin-walled cells.||Rhodobryum ontariense|
|1||Leaves 18-22 in rosettes; margins revolute to mid leaf or less; costal stereid bands small, not reaching dorsal epidermal layer, with at least one distinct intervening layer of thin-walled cells.||Rhodobryum roseum|
|Author||John R. Spence +|
|Authority||(Schimper) Limpricht +|
|Basionyms||Bryum subg. Rhodobryum +|
|Distribution||Nearly worldwide +, except Antarctica + and temperate to tropical regions. +|
|Etymology||Greek rhodon, rose, and bryon, moss, alluding to leaf rosettes +|
|Illustration copyright||Flora of North America Association +|
|Illustrator||Patricia M. Eckel +|
|Publication title||Laubm. Deutschl. +|
|Publication year||1892 +|
|Source xml||https://email@example.com/aafc-mbb/fna-data-curation.git/src/f50eec43f223ca0e34566be0b046453a0960e173/coarse grained fna xml/V28/V28 281.xml +|
|Taxon family||Bryaceae +|
|Taxon name||Rhodobryum +|
|Taxon parent||Bryaceae +|
|Taxon rank||genus +|
|Volume||Volume 28 +|