Marine Algae of the Cape Peninsula 



61 



-water of the East coast (False Bay) is Plocamium corallorhiza. 

 It may be found on rock faces at low water of spring tides grow- 

 ing equally well on a sandstone substratum as at Kalk Bay, or 

 on granite rocks, as at Oatlands. In both these places the fern- 



Fig. 3.— Outline sketch of base of plant of Macrocystis pirifera. 

 S = Stipe; R = Rhizome-like base; H = Hapterons; 



SF ^ Lower part of sterile frond; FF -= Fertile fronds, with 

 broken apex, and with fertile region stippled: at the base, the 

 fertile fronds are gradually splitting, and thus multiplying. 



{Much reduced) 



like fronds may be found with little clusters of reproductive organs 

 bodies at their crenated margins. 



There are also a number of filamentous or thread-like red 

 Algae, but these are usually found in the more sheltered pools 



