PLATE XXXIX. 



Chara aspera Willden6w. 



FIG. 



1. 9 plant, natural size, from Frensham, Surrey. 



2. ^ plant, natural size, from the same locality. 



3. Portion of stem, showing cortex, spine-cells, stipulodes, and 



base of whorl. X c. 35. 



4. Transverse section of stem. X c. 25. 



5. Fertile branchlet-node. ^ X c. 30. 



6. Fertile branchlet-node $. X 45. 



7. Oospore. X c. 50. 



8. Var. subinermis Kiitzing, portion of stem and base of whorl, 



with much reduced spine-cells. X c. 25. 



9. Var. lacustris H. & J. Groves, plant, natural size, from Lough 



Neagh. 



10. Portion of stem and base of whorl. X 25. 



11. Upper part of branchlet. X c 25. 



