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Pohlia nutans
The very slender, unbranched stems; lanceolate leaves with serrulate margins; and rhombic cells are distinguishing features of this species. In rich fens, Bryum pseudotriquetrum is common - it is distinguished by decurrent leaves that are entire and bordered by elongate cells, and by shorter long-hexagonal leaf cells. The decurrencies easily differentiate this species from Pohlia nutans. Pohlia wahlenbergii is frequent in calcareous seeps, it is reddish in color, and has longly decurrent leaves; P. cruda is very shiny and golden-green in color with thin-walled leaf cells – it occurs on peaty calcareous ledges.
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Clockwise from upper left: Pohlia nutans in field, alar cells, leaf cells, leaf margin, whole leaf |
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| Habit | Slender, yellow-green to light green, unbranched plants occurring intermingled with other mosses. |
| Stems | reddish, naked, shiny. |
| Leaves | lanceolate, acute, erect wet or dry; costa single, ending just beneath apex; margins distinctly serrulate in upper part of leaf. |
| Leaf Cells | long rectangular to long rhombic, rather thick-walled, smooth. |
| Alar Cells | not differentiated, leaves not decurrent. |
| Habitat | This is one of the most common species of upland boreal forest habitats - there occurring on rotting wood. It also occurs commonly intermingled with Sphagnum (and sometimes called P. sphagnicola) in oligotrophic peatlands. |
| Common Associates | Most commonly intermingled in Sphagnum fuscum along with Polytrichum strictum and Leiomylia anomala. |
pH Meter
