LIST OF THE PLATES. 



PLATE XXXIII. 



Figs. 1-3. Euastrum ventricosum 



(p. 4) 

 ,, 4-8. E. crassum (p. 5) 



PLATE XXXIY. 



Figs. 1-2. Euastrum humerosum 



(p. 8) 



,, 3-6. E. pinnatum (p. 10) 

 ,, 7-10. E. obloncjum (p. 12) 



PLATE XXXY. 



Figs. 1-2. Euastrum obloncjum 



(p. 12) 



3-7. E. Didelta (p. 15) 

 ,, 8-10. E. ampullae eum 



(p. 19) 

 11-12. #. affine (p. 17) 



PLATE XXXYII continued. 



Figs. 



PLATE XXXYI. 



1-3. Euastrum sinuosum 



(p. 20) 

 4. 17. Jenneri (p. 22) 

 5-6. 17. aboense (p. 23) 

 7-8. E. inerme (p. 24) 



9. E. cuneatum (p. 25) 

 10-15. E. ansatum (p. 27) 

 16-17. E. obesum (p. 29) 



Figs. 



PLATE XXXYII. 



1 . Euastrum pinyue 



(p. 30) 



2-5. E. insigne (p. 31) 

 6. E. intermedium (p. 33) 

 7. E. Webbianum (p. 34) 

 8. E. Sendtnerianum 



(P- 34) 



Figs. 9-10.- 



11-13, 



14-15, 



16-19, 



-E. Turneri (p. 37) 

 -E. rostratum (p. 35) 

 -E. spinosum (p. 38) 

 -E. bidentatum (p. 39) 



Figs. 



PLATE XXXYIII. 



1-2. Eua strum pidiun 



(p. 41) 



3-4. E. divaricatum (p. 42) 

 5-11. E. dubium (p. 43) 

 12-13. E. erosum (p. 45) 

 14-15. E. pulcliellum (p. 46) 

 16-27. #. elegans (p. 48) 

 28-36. E. binale (p. 51) 

 37. E. minutissim um 

 (p. 57) 



PLATE XXXIX. 



Figs. 1-5. Euastrum denticu- 



latum (p. 57) 



,, 6-7. E. incavatum (p. 58) 

 8-9. E. montanum (p. 58) 

 10-16. E. pectinatum (p. 60) 

 ,, 17-18. E. crassangulatum 



(p. 70) 



,, 19. E. gemmatum (p. 63) 

 ,, 20. E. occidentale (p. 67) 



PLATE XL. 



Figs. 1-7. Euastrum verrucosum 



(p. 64) 



8. E. Cornubiense (p. 70) 



9-10. E. crassicolle (p. 71) 

 ,, 11-14. E. insidare (p. 68) 

 15-18. E. crispulum (p. 72) 

 19-20 --E. svblobatum (p. 74) 

 21-22. E. validum (p. 75) 



