PLATE XXX. 

 Chara rudis Leoniardi. 



HO. 



1. Plant, two-thirds natural size, from Nairn. 



2. Portion of stem showing spine-cells, stipulodes and base of 



whorl. X c. 20. 



3. Transverse section of stem. X c 20. 



4. Fertile branchlet-node. X c. 20. 



5. Oogonium. X c. 40. 



6. Oospore. X c. 40. 



