40 
THE SEAWEEDS 
bur cuius rough with minute teeth. Fronds to 30 cm. high, in rock pools 
shorter, with a petiole denticulated like the surculus, bearing simple 
ramenta in three vertical series. The rachis terete. The ramenta to 7 mm. 
long, light green. 
Specimens growing in the rock pools of Point Lonsdale, Portsea and 
Pape Slianck, Victoria, were 10 to 13 cm. long; those dredged in deeper 
water at Southport and in Oyster Bay, Tasmania, reached 30 cm. in height. 
Harvey suggested that C. trifaria might prove to be a depauperised form 
of C. Harveyi but it is more slender and has a rough surculus, and the 
ramenta are very constantly arranged in three, not five, vertical rows. 
Fig. 21. — Caulerpa, Harveyi. 
