EXPLANATION OF PLATE VI. 



Metzgeria quadriserzata Evans. 

 Fig. i. Part of thallus, just beyond a fork, postical view, X 40. 



2. Midrib with adjoining cells, antical view, >( F>°- 



3. Marginal cilia, X 225. 



4. Cross section of midrib with adjoining cells, postical edge below, X -~^- 



5. Female branch, X 4°- 



The figures were all drawn from the type specimen. 



Radirfa oya?ncnsis Stephani. 

 Fig. 6. Part of female plant with perianth and subfloral innovations, postical 

 view, X 17- 



7. Part of stem, antical view, X *7- 



8. Cells from middle of lobe, some of the verrucuhe showing at right, 

 X3°Q- 



9. Apex of lobule, X 225. 

 10. Pericha;tial bract, X 4°- 



The figures were all drawn from Okamura's specimens. 



Lcjcunca planiloba Evans. 



Fig. 11. Part of female plant with perianth, postical view, the lobule of a bract 

 lying over the stalk of the capsule, X 40. 



12. Part of stem, postical view, X 4°- 



13. Cells from middle of lobe, X 300. 



14. Apex of lobule, X 225. 



15. Bract with connate bracteole, X 4°- 



16. Other bract from same involucre, X 4°- 



The figures were all drawn from the type specimen. 



' [62 



