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154 page results for 'British silurian stratigraphy'

Brook lamprey [Lampetra planeri]

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This species is the most abundant and widespread of the British lampreys and is often found in the absence

Early gentian [Gentianella anglica]

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Gentianella amarella , G . x davidiana , prompted a taxonomic reassessment of G. anglica throughout its British

River lamprey [Lampetra fluviatilis]

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All three British lamprey species are supported within the river.

North Uist Machair

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Many species dominant on southern British saltings are completely absent, and much of the expanse comprises

Bottlenose dolphin [Tursiops truncatus]

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Transient groups are not infrequent almost anywhere around the British coast except the southern North

Calluna – Vaccinium heaths occur throughout the British uplands, but are best-developed in the North ... Cannock Chase has the main British population of the hybrid bilberry Vaccinium intermedium , a plant

Natural dystrophic lakes and ponds

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pipewort Eriocaulon aquaticum , often in abundant populations, and the site is thought to represent the British

Dartmoor

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imbricatum , which occurs at two localities. 91A0 Old sessile oak woods with Ilex and Blechnum in the British

Hard oligo-mesotrophic waters with benthic vegetation of Chara spp.

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Twenty species have been recorded, which represents over 65% of the British flora.

Atlantic salt meadows (Glauco-Puccinellietalia maritimae)

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Many species dominant on southern British saltings are completely absent, and much of the expanse comprises