304 



APPENDIX I 



Into flat, strap-like fronds, and much-branched " hold- 

 fast." Colour : brownish-olive. Habitat : the seaward 



Fig. 20. — Common shore algse. 



I. Pelvetia canaliculata. 2. Halidrys nliquosa. 3. Fucus vesiculotua. 

 4. Laminaria digiiata. 5. L. saccharina. 6. Fucua ceranoidea. 7. H»- 

 mant?Mlia lorea. 8. Ascophyllum nodosum with Polysiphonia. 9. Fucua 

 serratus. 



