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Bryophytes of springs and flushes - 2009 course notes - Plantlife

Bryophytes of springs and flushes - 2009 course notes - Plantlife

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M10 Carex dioica – Pinguicula vulgaris mire <strong>and</strong> M11 Carex viridula subsp. oedocarpa<br />

– Saxifrage aizoides mire<br />

Most calcareous <strong>flushes</strong> in the hills belong to these two communities <strong>and</strong> the two can be<br />

difficult to separate. Both can occur as open, stony <strong>flushes</strong> but M10 generally has a more<br />

prominent vascular plant cover. The bryophytes are <strong>of</strong>ten the same in both communities;<br />

most consistent in the open stony areas are common species like Scorpidium scorpioides,<br />

Drepanocladus revolvens, Blindia acuta, Aneura pinguis (below bottom right), Campylium<br />

stellatum var stellatum, Ctenidium molluscum <strong>and</strong> occasionally Pseudocalliergon trifarium<br />

(below bottom left). The hummocks <strong>and</strong> margins <strong>of</strong> the <strong>flushes</strong> <strong>of</strong>ten have a greater diversity<br />

<strong>of</strong> species including rare <strong>and</strong> scarce species including Meesia uliginosa (top right) . The<br />

BAP species Tayloria lingulata is restricted to these two flush communities <strong>and</strong> M12, usually<br />

on hummocks within the flush. Another BAP species, Splachnum vasculosum, can form long<br />

st<strong>and</strong>s along the margins <strong>of</strong> the flush.<br />

M12 Carex saxatilis mire<br />

This uncommon flush type usually has a more complete <strong>and</strong> taller cover than M10 <strong>and</strong> M11<br />

with Carex saxatilis dominant but usually with other sedges. It is <strong>of</strong>ten not as strongly<br />

calcareous as the most diverse M10 <strong>and</strong> M11 <strong>flushes</strong> <strong>and</strong> is usually above 600m. The<br />

bryophytes are similar to M10 <strong>and</strong> M11 but <strong>of</strong>ten less diverse but a number <strong>of</strong> rarities do<br />

occur here including Tayloria lingulata.<br />

6

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