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Campylium stellatum
The widely-spreading stiff leaves are key field characters. The leaves have a concave, ovate base that quickly narrows to a long, channeled, acuminate apex. The channeled acumen is a key character. In the arctic, C. arcticum has even more concave leaves and a v-shaped insertion (compared to a more open u-shaped one for C. stellatum). Campylium polygamum is a species that occurs in eutrophic marshes and fens, in carpets, and has less spreading, and less concave leaves that have a stronger, usually single costa. Other Campylium species are smaller and more prostrate.
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Clockwise from upper left: alar cells, whole cells, leaf apex, whole leaf |
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Habit |
Golden-green bristling plants with erect to ascending, infrequently branched stems |
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Leaves |
wide-spreading to almost squarrose wet or dry, ovate-lanceolate, and sharply narrowed to a long acuminate, channeled apex, entire, costa short and double |
Leaf Cells |
elongate to long rhombic wiht blunt ends, smooth |
Alar Cells |
hyaline and enlarged, forming a well marked angular group |
Habitat |
Lawns of rich fens, occurring above Scorpidium revolvens and S. cossonii, and below Sphagnum warnstorfii and Tomethypnum nitens |
Common Associates |
In extreme fich fens, rare associates may include Catoscopium nigritum |
pH Meter
