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Published In: Species Muscorum Frondosorum 188–197, pl. 45. 1801. (Sp. Musc. Frond.) Name publication detailView in BotanicusView in Biodiversity Heritage Library

Project Name Data (Last Modified On 2/24/2011)
Acceptance : Accepted
Project data     (Last Modified On 2/24/2011)

The circumscription of Mnium follows Koponen (1968) which restricts the genus to those species (excepting M. stellare) having multistratose, doubly serrate leaf margins.


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Mnium Hedw., Sp. Musc. Frond. 188. 1801. 

Medium-sized plants in dark-green or yellowish green tufts. Stems erect, simple, Mnium-type; reddish‑brown macronemata at base of stems, micronemata absent. Leaves spirally arranged, erect‑spreading to spreading, oblong‑elliptic, decurrent; margins multistratose, doubly toothed, bordered by linear cells; costae single, strong, subpercurrent to percurrent, usually toothed at back, with two stereid bands; upper cells hexagonal to isodiametric, firm‑walled, with or without thickened corners, smooth. Dioicous, paroicous, or synoicous. Setae elongate. Capsules exserted, horizontal to pendulous, oblong to cylindrical, smooth; stomata immersed in neck; opercula rostrate to mammillate; exostome of 16 narrowly triangular teeth, endostome basal membrane well-developed, segments perforate, cilia 2–4. Calyptrae cucullate, naked.

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