s A Field Guide to the British Seaweeds - NMBAQC

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Spongomorpha arcta Highly branched filamentous and tufted in morphology and bright green in colour. Cells longer than broad with reticulate chloroplast consisting of a fine non-dense network of fibrils, which are clearly visible under the microscope, apical cells often slightly bulbous and conspicuous. Fine reticulate chloroplast also makes the numerous pyrenoids easily distinguishable. Branches may be straight, downward growing and rhizoidal or hook shaped which may lead to filaments become entangled and rope-like. Often found in moist overhangs within turfs of other green and red algae on the mid shore region. May be confused superficially with Cladophora sp. Pyrenoids highly visible as green discs Branching and filaments may be straight or in-rolled forming hooks Plants are often highly branched and filaments may become entangled forming ropes
Sykidion moorei Plant consisting of a single cell embedded between the mucilage walls of Blidingia species fronds. Easily distinguished from Blidingia cells as they are much larger.
Page 1 and 2:
A Field Guide to the British Seawee
Page 3 and 4:
INTRODUCTION The EU Water Framework
Page 5 and 6: - Turfs of mixed species including
Page 7 and 8: Some species have distinct vertical
Page 9 and 10: Table 1: Field sampling sheet to re
Page 11 and 12: Table 2: Species lists for each of
Page 13 and 14: The varieties of algae forms are br
Page 15 and 16: Special features that need to be co
Page 17 and 18: • Reproductive structures - these
Page 19 and 20: Axial cell • Distal- Towards the
Page 21 and 22: A FIELD KEY TO THE BRITISH SEAWEEDS
Page 23 and 24: Rhodophyta The red algae exhibit a
Page 25 and 26: Group A 1. Plants completely flatte
Page 27 and 28: Phaeophyta Species Group A Plants a
Page 29 and 30: 8. Thallus consisting of a large wi
Page 31 and 32: Group D 1. Plant dichotomously bran
Page 33 and 34: Group A 1. Plant calcareous……
Page 35 and 36: 10. Plant completely flattened ofte
Page 37 and 38: 11. Plant black and wiry with disc-
Page 39 and 40: 3. Plant generally found attached t
Page 41 and 42: Browns Alaria esculenta Ascophyllum
Page 43 and 44: Ceramium nodulosum Ceramium shuttle
Page 45 and 46: Polysiphonia fucoides Polysiphonia
Page 47 and 48: Blidingia sp. This is a tubular and
Page 49 and 50: Chaetomorpha linum This is an unbra
Page 51 and 52: Chaetomorpha melagonium This is an
Page 53 and 54: Enteromorpha sp. A tubular plant wh
Page 55: Rhizoclonium tortuosum Plant consis
Page 59: Ulva lactuca A flat foliose plant t
Page 62 and 63: Ascophyllum nodosum Frond very long
Page 64 and 65: Chordaria flagelliformis Plant ofte
Page 66 and 67: Desmarestia aculeata Frond often qu
Page 68 and 69: Ectocarpus sp. Fine filamentous for
Page 70 and 71: Fucus sp. Plants tough, cartilagino
Page 72 and 73: Laminaria sp. Thick leathery, very
Page 74 and 75: Litosiphon laminariae Epiphytic pla
Page 76 and 77: Pilayella littoralis Fine filamento
Page 78 and 79: Scytosiphon lomentaria Plant charac
Page 80 and 81: Spongonema tomentosum Fine and fila
Page 82 and 83: Ahnfeltia plicata Plant completely
Page 84 and 85: Calcareous encrusters Calcareous en
Page 86 and 87: Ceramium nodulosum This is a highly
Page 88 and 89: Chondrus crispus This species is ca
Page 90 and 91: Cystoclonium purpureum This is a fi
Page 92 and 93: Erythrotrichia carnea This is a sma
Page 94 and 95: Gelidium sp. Gracilaria gracilis Sp
Page 96 and 97: Heterosiphonia plumosa Plant filame
Page 98 and 99: Lomentaria clavellosa This plant is
Page 100 and 101: Hypoglossum hypoglossoides This spe
Page 102 and 103: Melobesia membrancea This is a smal
Page 104 and 105: Osmundea hybrida and Osmundea pinna
Page 106 and 107:
Phyllophora sp. Plant tough, cartil
Page 108 and 109:
Polysiphonia fucoides Plants are ge
Page 110 and 111:
Porphyra species These plants are f
Page 112:
Rhodothamniella floridula This plan
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s A Field Guide to the British Seaweeds - NMBAQC

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