151 ALLAN HANCOCK PACIFIC EXPEDITIONS VOL. 26 



PLATE 24 



Fig. 1. Ceramium pacificum (Collins) Kylin. Habit, X 0.425 (after Smith). 



Fig. 2. Ceramium ornatum S. & G. Part of a tetrasporangial filament from 

 the type collection, X 100. 



Fig. 3-4. Ceramium procumbens S. & G. Fig. 3, a tetrasporangial branch. X 

 75; Fig. 4, Part of a sterile filament, X 155. 



Fig. 5-6. Ceramium recticorticum Daws. Portions of filaments near the base 

 and near the apex, respectively, X 210. 



