Status: Native
Synonyms:
Hypnum cirrosum Schwägr.
Cirriphyllum cirrosum (Schwägr.) Grout
Brachythecium cirrosum is a moderate to large species that is mostly found in the arctic. The leaves contract very abruptly to a long subula. The lamina are not or are just slightly plicate. The alar regions are blackish opaque. The leaves are concave.
Many thanks to the University of Colorado Herbarium (COLO), Erin Tripp and Dina Clark for loaning us this specimen for photography.
Please click on an image for a larger file.
Brachythecium cirrosum, collection and ID by S. Sushan & John W. Thomson Jr., Alaska, Arctic Coast District, general vicinity of Point Barrow, on beach gravel north end of Point Barrow, July 27, 1958; photos by Russ Kleinman and Karen Blisard May 2, 2023
Brachythecium cirrosum, closeup of stems, collection and ID by S. Sushan & John W. Thomson Jr., Alaska, Arctic Coast District, general vicinity of Point Barrow, on beach gravel north end of Point Barrow, July 27, 1958; photos by Russ Kleinman and Karen Blisard May 2, 2023
Brachythecium cirrosum, photomicrograph of stem leaf, collection and ID by D.H. Vitt, Canada, Alberta, Mt. Klotz, headwaters of Ogilvie River in alpine tundra, July 5, 1973; photos by Russ Kleinman and Karen Blisard May 2, 2023
Brachythecium cirrosum, photomicrograph of stem leaf, collection and ID by D.H. Vitt, Canada, Alberta, Mt. Klotz, headwaters of Ogilvie River in alpine tundra, July 5, 1973; photos by Russ Kleinman and Karen Blisard May 2, 2023
Brachythecium cirrosum, photomicrograph of branch leaf, collection and ID by D.H. Vitt, Canada, Alberta, Mt. Klotz, headwaters of Ogilvie River in alpine tundra, July 5, 1973; photos by Russ Kleinman and Karen Blisard May 2, 2023
Brachythecium cirrosum, photomicrograph of branch leaf, collection and ID by D.H. Vitt, Canada, Alberta, Mt. Klotz, headwaters of Ogilvie River in alpine tundra, July 5, 1973; photos by Russ Kleinman and Karen Blisard May 2, 2023
Brachythecium cirrosum, photomicrograph of branch leaf apex, collection and ID by D.H. Vitt, Canada, Alberta, Mt. Klotz, headwaters of Ogilvie River in alpine tundra, July 5, 1973; photos by Russ Kleinman and Karen Blisard May 2, 2023
Brachythecium cirrosum, photomicrograph of branch leaf base and alar region, collection and ID by D.H. Vitt, Canada, Alberta, Mt. Klotz, headwaters of Ogilvie River in alpine tundra, July 5, 1973; photos by Russ Kleinman and Karen Blisard May 2, 2023
Brachythecium cirrosum, photomicrograph of cells at midleaf of branch leaf, collection and ID by D.H. Vitt, Canada, Alberta, Mt. Klotz, headwaters of Ogilvie River in alpine tundra, July 5, 1973; photos by Russ Kleinman and Karen Blisard May 2, 2023
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