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Stramiergon stramineum
The straw-colored, slender, unbranched plants with oblong, obtuse straight, leaves distinguish this species. Calliergon and Calliergonella species (all with similar leaf cells) have inflated, hyaline, alar cells and generally broader leaves. Formerly known as Calliergon stramineum.
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| Habit | Erect to ascending yellow-green, slender plants forming loose mats or occurring singly in Sphagnum mats |
| Stems | mostly unbranched, without a hyalodermis. |
| Leaves | narrowly oblong to oblong, ending in an obtuse cucullate apex, straight; costa single, ending about 2/3 up the leaf. |
| Leaf Cells | elongate to narrowly rhombic, with blunt ends, smooth and thin-walled. |
| Alar Cells | forming a conspicuous group of thick-walled, rectangular, colored cells; somewhat decurrent. |
| Habitat | Mostly occurring on a variety of organic substrates, most common in oligotrophic habitats where it is found intermingled with Sphagnum, but also occurring in carpets and lawns of rich fens. |
| Common Associates | Intermingled with peat-forming Sphagna such as S. fuscum, S. angustifolium, and S. magellancium, but also with carpet/lawn species of Drepanocladus (sensu lato). |
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