Fig. 89 Sporochnus pedunculatus. A, plant, B, fertile branch 



with receptacle. 5=sorus. C, unilocular sporangia (w). e= empty 



sporangium. (After Oltmanns.) 



on special branched fertile threads in the soral region. The gameto- 

 phytes are ectocarpoid with small antheridia and swollen terminal 

 cells that are believed to be oogonia. Fertilization has not been seen 

 as yet. 



161 



