Timo Koponen

Plagiomnium is a genus of mosses in the family Mniaceae. It was formerly a part of a more encompassing genus Mnium and in 1968 Finnish bryologist Timo Juhani Koponen justified splitting the genus into a number of smaller genera.

Rhizomnium punctatum, also called dotted thyme-moss, is a small species in the genus Rhizomnium.

Plagiomnium affine, the many-fruited thyme-moss, is a species of thyme-moss found in old-growth boreal forests in North America, Europe and Asia, growing in moist, but not wet, basic to slightly acidic micro-habitats in woodland and turf. ('Plagio' = oblique, 'Mnium' = genus of thyme-moss) Forming low lawns, stems are usually some 2 cm long, with densely packed leaves, though 10 cm long trailing infertile stems have only sparse leaves, smaller than those on fertile stems. Leaves strongly curled when dry, spreading plane when moist, the basal leaves broadly elliptic to rounded, those at the

Rhizomnium is a genus of mosses in the family Mniaceae commonly referred to as leafy mosses. They grow nearly worldwide, mostly in the northern hemisphere.

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Plagiomnium cuspidatum, also known as toothed or "baby-tooth" plagiomnium moss and woodsy thyme-moss, is a species of thyme-moss that originated in North America, but can now also be found throughout Middle America, Africa, Northern and Southern Asia (excluding China), and Europe. Plagiomnium cuspidatum can commonly be found growing along the base of trees, stumps, coarse woody debris, and rocks in base-rich habitats such as: wet meadows, forested rich peatlands, wet forests, fire-dependent woodlands, mesic hardwood forests, and cliff/talus at low to moderate elevations. It is commonly used

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Rhizomnium pseudopunctatum is a species of moss belonging to the family Mniaceae. It is native to Northern Hemisphere.

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Sarmentypnum is a genus of mosses belonging to the family Calliergonaceae. The genus has cosmopolitan distribution. Species: Sarmentypnum exannulatum (Schimp.) Hedenäs Sarmentypnum luipichense (R.S.Williams) Hedenäs

Pseudobryum is a genus of mosses belonging to the family Mniaceae. Species: Pseudobryum cinclidioides (Huebener) T.J. Kop. Pseudobryum speciosum (Mitt.) T.J. Kop.

Plagiomnium medium, commonly known as Alpine thyme-moss or intermediate plagiomnium moss, is a moss found in montane habitats in the Northern Hemisphere. Research published in 1988 showed that is a hybrid of P. ellipticum and P. insigne via an allopolyploid process, previously considered to be absent in bryophyte evolution. In the UK it is classified as near threatened. More than 10% of all UK populations occur in the Cairngorms National Park in Scotland including sites in the Lairig Ghru and on the plateau of Lochnagar.

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Unclejackia is a genus of mosses belonging to the family Brachytheciaceae. The species of this genus are found in Indonesia. The genus was named for Jack Sharp by botanist Daniel H. Norris. There are two species: Unclejackia crispifolia Ignatov, T.Koponen & Norris, 1999 Unclejackia longisetula Ignatov, T.Koponen & Norris, 1999

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Rhizomnium glabrescens, also called fan moss or large leafy moss, is a species of moss in the genus Rhizomnium.

Rhizomnium appalachianum is a species of moss in the family Mniaceae native to the Eastern United States and Canada, from Manitoba to Newfoundland and south to South Carolina. It grows 4-8cm tall, and has relatively large leaves for a moss which are typically 6.5mm wide and 10mm long. The stems are covered in reddish hairs. It grows in wet areas such as along streams and in seeps and especially the edges where there is a transition from wet to dry.

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Plagiomnium venustum, also known as magnificent leafy moss, is a species of moss belonging to the family Mniaceae. It is found mainly in western North America along the coastal region. This moss can be identified from other members of the Plagiomnium genus by dark coloured stomata guard cells and the absence of sterile stems. It is most commonly found growing as a mat on a variety of substrate, but mainly on humus and moist soil.

Plagiomnium insigne, commonly known as badge moss or coastal leafy moss, is a species of moss endemic to western North America.

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