180 
THE SEAWEEDS 
Fig. 48 . — Phacelocarpus alatus. 
Fig. 49 . — Phacelocarpus Labillardieri : a, branch of 
plant; b, portion of branch in fruit; c, 
cross-section of stem; d, small fragment 
of periphery of same; e, longitudinal 
section through a receptacle, showing 
many tetraspore cavities; f, tetraspores 
and paranemata from the same. (After 
Harvey.) 
