Important Plant Areas for algae - Natural History Museum

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22 Kimmeridge Ledges 23 Weymouth, Dorset SY9177 VMR A, D Jurassic limestone ledges. Unusual algal assemblages. Only known site for Ceramium circinatum SY683781 B, D High It has a long history of study and is the type locality for several Atractophora hypnoides species of algae including: Callocolax neglectus F. Schmitz ex Dasya corymbifera Batters, Nitophyllum punctatum (Stackhouse) Greville and Chondria Helminthocladia calvadosii capillaris (Hudson) M.J. Wynne. Good historical records and good Lophosiphonia reptabunda collections at the BM. Polysiphonia simulans Polysiphonia subulifera Rhodophysema georgei 24 The Fleet, Dorset SY6081 Part of SAC (Chesil and Fleet) A, C The Fleet is the largest example of a lagoon in England and has features of both lagoonal inlets and percolation lagoons. It has fully saline to reduced salinity regions. It supports extensive populations of Zostera spp. 25 Sidmouth, Devon SY1287 B High This site has a wide range of habitats including sand interspersed with boulder and bedrock, worm reefs and granite boulder sea defences. It has a long history of algal study and is the type locality for several species of algae including: Porphyra linearis Greville, P. dioica Brodie & L. Irvine, Cordylecladia erecta (Greville) J. Agardh, Polysiphonia devoniensis Maggs & Hommersand, P. elongella Harvey, Gelidium pusillum (Stackhouse) Le Jolis and Gymnogongrus griffithsiae (Turner) C.F.P. Martius. 26 Torquay, Devon SX930640 B, D High This site has a long history of algal study. It has a high diversity of species and is the type locality for several species of algae including Kallymenia microphylla J. Agardh, Compsothamnion gracillimum De Toni, Ceramium echinotum J. Agardh, C. pallidum (Nägeli ex Kützing) Maggs & Hommersand, C. siliquosum (Kützing) Maggs & Hommersand and Sphondylothamnion multifidum (Hudson) Nägeli. 27 Wembury, Devon SX5147 VMCA B, D High A moderately exposed shore with varied intertidal rocky communities. This site has a long history of study and is a diversity hotspot. 28 Plymouth, Devon SX485535 SAC B Very high This site has a very high algal diversity. It has a long history of algal study and it is the type locality for several species of algae including Acrochaetium brebneri (Batters) G. Hamel, Colaconema endophyticum (Batters) J.T. Harper & G.W. Saunders, C. bonnemaisoniae Batters and Polysiphonia foetidissima Cocks ex Bornet. Laminaria ochroleuca is recorded from this site. 17 Titanoderma laminariae Lamprothamnion papulosum (nationally rare charophyte). Zostera spp Grateloupia turuturu Sarcodiotheca gaudichaudii Solieria chordalis Lophosiphonia reptabunda Gelidium corneum Polysiphonia furcellata Polysiphonia subulifera Rhodophysema georgei Bornetia secundiflora Atractophora hypnoides Bornetia secundifora Helminthocladia calvadosii Gigartina pistillata Polysiphonia simulans Rhodophysema georgei
29 Falmouth and Helford, Cornwall SW813321 SAC A, B, C Very high This area has sheltered intertidal mudflats and sandflats. It has a particularly diverse algal flora including a number of warm water species. It is the location of the largest and most southerly maerl bed in the UK. It has a long history of algal study. Type species include 30 Lizard, Cornwall SW690174 (SAC grid red) 31 Scilly Isles, Cornwall 32 Lundy Island, Devon SV912111 SS1345 NNR; SAC SSSI; SAC; SPA; AONB; Ramsar; MPA; ATBI MNR; SAC; SSSI Phymatolithon calcareum (Pallas) Adey & D.L. McKibbin. There are extensive populations of Zostera. Schmitzia hiscokiana Schmitzia neapolitana Acrothrix gracilis Cruoria cruoriaeformis Gelidium corneum Grateloupia dichotoma Halymenia latifolia Itonoa marginifera Lithothamnion corallioides Rhodymenia delicatula Schmitzia hiscockiana A, B High Historical site with high diversity. Audouinella lorrain-smithiae Bornetia secundiflora Codium adhaerens Dasya ocellata Desmarestia dresnayi Gelidium corneum Gigartina pistillata Grateloupia dichotoma Microcaldia glandulosa Pterosiphonia pennata Pringsheimiella scutata Sphacelaria tribuloides A, B High An archipelago of granite islands off southwest of England with a high diversity of marine habitats and communities in a range of A, B, C exposure conditions. It is the type locality for several species of algae including: Rhodophysema georgei Batters and Erythrotrichia bertholdii Batters. There are extensive seagrass beds of Zostera marina. There is a high diversity of algae. There are historical studies. It is designated a European ATBI site. Very high This site consists of granite and slate reef systems and a variety of habitats on the reefs. It is a ‘diversity hotspot’ for algae with over 300 species recorded. It is the most northerly site recorded Laminaria ochroleuca. It has a long history of algal study. 18 Atractophora hypnoides Bornetia secundiflora Desmarestia dresnayi Halymenia latifolia Lithothamnion corallioides Rhodophysema georgei Rhodymenia delicatula Pterosiphonia pennata Schmitzia hiscokiana Schmitzia neapolitana Codium vermilara Colacodictyon reticulatum Itonoa marginifera Kuetzingiella battersii Microcladia glandulosa Myriactula stellulata
Page 2 and 3: CONTENTS 1.0 SUMMARY ..............
Page 4 and 5: LIST OF ABBREVIATIONS AONB Area of
Page 6 and 7: 2.0 IMPORTANT PLANT AREAS Juliet Br
Page 8 and 9: 3.2 UK ALGAL DIVERSITY Hardy & Guir
Page 10 and 11: inventory when more data become ava
Page 12 and 13: vii) Threatened or rare marine alga
Page 14 and 15: Table 4.1 Sites nominated as Europe
Page 16 and 17: 7 Great Yarmouth, Norfolk 9 Thames
Page 20 and 21: Pringsheimiella scutata 33 Ilfracom
Page 22 and 23: 52 Lamlash Bay, Arran, Argyll NS030
Page 24 and 25: 82 Strangford J589496 Lough, Co. Do
Page 26 and 27: 17 Hayling Island/ Solent/ Portsmou
Page 28 and 29: 4.32 Determining a list of ‘rare
Page 30 and 31: specimen in specimen in BM BM Litho
Page 32 and 33: Hincksia secunda (Kützing) P.C. Si
Page 34 and 35: Table 4.5 Assessment of the proport
Page 36 and 37: 4.4 DISCUSSION This is the first ti
Page 38 and 39: 4.5 RECOMMENDATIONS • A number of
Page 40 and 41: Information from report on UK stone
Page 42 and 43: 5.41 Criterion A - threatened speci
Page 44 and 45: Table 5.4 Sites nominated as Europe
Page 46 and 47: Table 5.6 Potential UK IPAs (areas/
Page 48 and 49: 6.0 ACKNOWLEDGEMENTS We wish to exp
Page 50 and 51: 8.0 APPENDIX - FRESHWATER ALGAE 8.1
Page 52 and 53: Cosmarium logiense 0 + Cosmarium ni
Page 54 and 55: Cosmarium phaseolus elevatum, minus
Page 56 and 57: Staurastrum elongatum 4 + Staurastr
Page 58 and 59: Cosmarium boeckii 36 + Cosmarium br
Page 60 and 61: Staurastrum spongiosum perbifidum 1
Page 62 and 63: Records contact: David Williamson;
Page 64 and 65: Grid ref: NY351011 Status: unknown
Page 66 and 67: No. of potential UK Red List desmid
Page 68 and 69:
published (Duthie, 1965) hence its
Page 70 and 71:
Site description A small freshwater
Page 72 and 73:
Status: Ownership: Qualifying crite
Page 74 and 75:
39. Wicken Fen, Cambrideshire Grid
Page 76 and 77:
9. REFERENCES Anand, P.L. 1937. A t
Page 78 and 79:
Jewson, D. H., Lowry, S. F. & Bowen
Page 80 and 81:
Woodhead, N. & Tweed, R.D. 1954. Th
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Important Plant Areas for algae - Natural History Museum

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