140 
THE SEAWEEDS 
b. Fronds corticated from the base up. 
Wrangelia clavigera Harvey. 
One of the coarsest; frond cartilaginous, thick, decompound pin- 
nate, throughout densely whorled with imbricate multifid ramelli, 
the younger branches markedly club-shaped. Ramelli alternately 
pinnato-multifid, the apices acute. Cystocarps terminating short 
club-shaped pinnules. Height 15 cm. to 30 cm. Colour reddish- 
brown. 
Spencer’s Gulf to Western Port, Port Elliot, Eastern Bays. In 
Tasmania an allied form with richly pencilled and rosy branches 
grows to a height of a meter or more. 
Fig. 13 . — Wrangelia clavigera: a, plant; b, ramellus; c, 
one of the short, club-like fruit branches, 
bearing a terminal cystocarp; d, spores and 
paranemata from the cystocarp. (After 
Harvey.) 
