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Tomenthypnum nitens
The costate, plicate, straight leaves with linear cells are diagnostic for this common species of rich fens. Tomenthypnum falcifolium is similar but has falcate-secund leaves; it occurs in poor fens. In arctic meadows Orthothecium chryseum occurs, but is distinguished by ecostate leaves.
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Above, plant in the field, alar cells, leaf cells, whole leaf |
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| Habit | Erect, pinnately branched plants. |
| Stems | covered with tomentum of reddish rhizoids. |
| Leaves | long-lanceolate, straight, acuminate to narrowly acute, strongly plicate, margins entire, costa strong and single, ending just below apex. |
| Leaf Cells | elongate-linear, thin-walled, smooth. |
| Alar Cells | not much different, shorter, with thicker, nodose walls. |
| Habitat | On hummocks and raised areas in wooded to open rich fens and calcareous tundra. |
| Common Associates | Sphagnum warnstorfii, Aulacomnium palustre, and Campylium stellatum, Occasionally associated with less frequent species such as Paludella squarrosa and Helodium blandowii, |
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