s A Field Guide to the British Seaweeds - NMBAQC
s A Field Guide to the British Seaweeds - NMBAQC
s A Field Guide to the British Seaweeds - NMBAQC
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10. Plant completely flattened often with broad wide wedge shaped frond often<br />
quite <strong>to</strong>ugh often with smooth fronds Chondrus crispus<br />
10. Plant with in-rolled gutter like frond forming a channel quite dark in colour<br />
and <strong>to</strong>ugh often with rough frond and edges due <strong>to</strong> presence of reproductive<br />
bodies Mas<strong>to</strong>carpus stellatus<br />
11. Plant with regular branching pattern…………………………………………12<br />
11. Plant with irregular branching……………………………………………….13<br />
12. Plant quite fine and delicate with regular comb-like branching, very highly<br />
branched very pink in colour Plocamium cartilagineum<br />
12. Plant with small but regularly alternate branching, with a <strong>to</strong>oth-like outline,<br />
usually deep pink/red in colour Odonthalia dentata<br />
13. Plant highly divided in<strong>to</strong> irregular but broad fan shaped sections with wide<br />
fronds quite floppy and fleshy Callophyllis laciniata<br />
13. Plant highly branched often opposite but not obviously, plant terete in lower<br />
section but often broader and flattened <strong>to</strong>wards <strong>the</strong> tips Gelidium sp.<br />
Group C<br />
1. Plant visibly constricted at intervals…………………………………………..2<br />
1. Plant not constricted at intervals……………………………………………....4<br />
2. Constrictions at irregular intervals, plant irregularly branched with segments<br />
variable, some flat some cylindrical, small and creeping<br />
Catenella caespi<strong>to</strong>sa<br />
2. Constrictions at regular intervals…………………………...…………………3<br />
Reduced species list identification guide as required by <strong>the</strong> Water Framework Directive 34
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