Biology
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englanti
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tarjonnut Arkive
Liverworts, hornworts and mosses form a group of plants called bryophytes (4). Bryophytes lack many of the more complex structures of the higher plants, such as a vascular system, and flowers. They do not have roots, instead they have structures called 'rhizoids' which absorb water and anchor the plant to the substrate. In liverworts these rhizoids each consist of a single elongated cell (5). Bryophytes have an interesting life cycle, which consists of two main stages, called the gametophyte and sporophyte generations, the gametophyte generation is dominant (5).
Conservation
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englanti
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tarjonnut Arkive
This liverwort is a UK Biodiversity Action Plan (UK BAP) priority species; a Species Action Plan has therefore been produced to guide its conservation (2). The plan aims to maintain viable populations throughout the current range of the species. A large number of the present sites that support this species are designated Sites of Special Scientific Interest (SSSIs), and some occur in National Nature Reserves (NNRs), the species therefore benefits from a degree of protection at these sites (2).
Description
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englanti
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tarjonnut Arkive
This small, leafy liverwort grows in pinkish-green to rosy red, or occasionally purplish-brown or coppery coloured mats (3) (6). It has often been confused with the related species Marsupella boekii (2). Detailed examination can distinguish the two, with the leaves of Marsupella boekii usually being spaced further apart, and less closely pressed to the stem. Marsupella boekii also often lacks the rosy colour seen in Stabler's rustwort (6).
Habitat
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englanti
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tarjonnut Arkive
Found in mountains at altitudes of between 300 and 1160 m, where it grows on wet or moist, steeply sloping to vertical acidic or mildly basic rocks, including rocks and gravely soil (2) (6). Typical habitats supporting this species are flushed with water periodically throughout the year (2).
Range
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englanti
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tarjonnut Arkive
This liverwort has been recorded from sites in Scotland, the Lake District and from two sites in north Wales (2). The range outside of Britain is unclear, due to confusion with Marsupella boekii, but Stabler's rustwort has been recorded from western Norway and Canada (2).
Status
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englanti
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tarjonnut Arkive
Classified as Nationally Scarce in Great Britain (2).
Threats
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englanti
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tarjonnut Arkive
The threats facing this species are not understood, but it seems likely that the building of ski lifts and disturbance and erosion caused by walkers and climbers may have resulted in losses of Stabler's rustwort in some areas (2).
Rhydlys stabler
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kymri
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tarjonnut wikipedia CY
Math o blanhigyn, di-flodau, ac un o lysiau'r afu yw Rhydlys stabler (enw gwyddonol: Marsupella stableri; enw Saesneg: Stabler's rustwort). O ran tacson, mae'n perthyn i urdd y Jungermanniales, o fewn y dosbarth Jungermanniopsida.
Mae’r rhywogaeth hon i’w chanfod mewn dau leoliad ar arfordir Gwynedd a nifer o lefydd yn yr Alban ac Ardal y Llynnoedd.
Fel arfer, mae'r llysiau'r afu hyn yn tyfu fel matiau coch llorweddol, tebyg i edau, sy'n binc eu lliw, ond gall rhai planhigion fod yn goch tywyllach neu bron yn ddu, neu'n wyrdd yn y cysgod. Eu cynefin yw llethrau llaith y mynyddoedd.
Gall yr egin fod hyd at 15 mm o hyd, ond fel arfer maent yn llawer byrrach, ac yn gul iawn.[1]
Llysiau'r afu
Planhigion anflodeuol bach o'r rhaniad Marchantiophyta yw llysiau'r afu. Defnyddir y term "lysiau'r afu" am un planhigyn, neu lawer. Erbyn 2019 roedd tua 6,000 o rywogaethau wedi cael eu hadnabod gan naturiaethwyr.[2] Fe'u ceir ledled y byd, mewn lleoedd llaith gan amlaf. Mae gan lawer ohonynt goesyn a dail ac maent yn debyg i fwsoglau o ran golwg.
Mae rhai rhywogaethau i'w cael yng Nghymru; gweler y categori yma.
Cyfeiriadau
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↑ rbg-web2.rbge.org.uk; adalwyd 25 Hydref 2019.
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↑ Raven, Peter H.; Ray F. Evert & Susan E. Eichhorn (1999) Biology of Plants, W. H. Freeman, Efrog Newydd.
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Rhydlys stabler: Brief Summary
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kymri
)
tarjonnut wikipedia CY
Math o blanhigyn, di-flodau, ac un o lysiau'r afu yw Rhydlys stabler (enw gwyddonol: Marsupella stableri; enw Saesneg: Stabler's rustwort). O ran tacson, mae'n perthyn i urdd y Jungermanniales, o fewn y dosbarth Jungermanniopsida.
Mae’r rhywogaeth hon i’w chanfod mewn dau leoliad ar arfordir Gwynedd a nifer o lefydd yn yr Alban ac Ardal y Llynnoedd.
Fel arfer, mae'r llysiau'r afu hyn yn tyfu fel matiau coch llorweddol, tebyg i edau, sy'n binc eu lliw, ond gall rhai planhigion fod yn goch tywyllach neu bron yn ddu, neu'n wyrdd yn y cysgod. Eu cynefin yw llethrau llaith y mynyddoedd.
Gall yr egin fod hyd at 15 mm o hyd, ond fel arfer maent yn llawer byrrach, ac yn gul iawn.
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Marsupella stableri
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vietnam
)
tarjonnut wikipedia VI
Marsupella stableri là một loài Rêu trong họ Gymnomitriaceae. Loài này được Spruce mô tả khoa học đầu tiên năm 1881.[1]
Chú thích
Liên kết ngoài
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Marsupella stableri: Brief Summary
(
vietnam
)
tarjonnut wikipedia VI
Marsupella stableri là một loài Rêu trong họ Gymnomitriaceae. Loài này được Spruce mô tả khoa học đầu tiên năm 1881.
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Bài viết liên quan đến bộ rêu Jungermanniales này vẫn còn sơ khai. Bạn có thể giúp Wikipedia bằng cách mở rộng nội dung để bài được hoàn chỉnh hơn. 