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Sphagnum cuspidatum
The very slender, weak, yellow-green plants growing in oligotrophic habitats characterize this species. The very long, linear branch leaves have almost no pores and never do they have medial pores. The stem leaves are relatively large and acute due to inflexed margins. Sphagnum balticum is more stout and has different green cell shape, whereas other species clearly have different pores patterns of the branch leaves or have distinctive stem leaves cuspidatum is a subcontinental and temperate species and does not occur in boreal continental bogs and poor fens.
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L to Re: S. custpidatum in the field, stem leaf |
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| Habit | Weak, slender plants floating in water or sometimes forming loose carpets, yellow-green, one pendent branch visible between capitulum arms. |
| Stems | colorless, with poorly developed hyalodermis. |
| Leaves | elongate lanceolate, slender, gradually tapering to truncate, acuminate apex; stem leaves oblong-triangular, concave and appearing acute due to inflexed margins, somewhat fibrillose in upper portion, without pores, rather large and loosely erect. |
| Leaf Cells | very long, on convex surface a few round pores iin corners of cell, on concave surface without or with only 1-2 indistinct pores in the corners, green cells triangular, exposed on the convex surface and extending to concave surface. |
| Alar Cells | |
| Habitat | Aquatic and emergent in oligotrophic habitats. |
| Common Associates | Occurs in poor fens along with S. papillosum. |
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