PLANCHK VII 



FIGURE PAGE 



1. Navicula veutnco.-a Ivtz. var. r' K.Ost. (Coudes) J^'J 

 "2. fasciata Lag. var. niarrata E. Ost. 



(Coudes) 122 



3. silicula Eli. var. truncatula Grun. 



(Coudes) 122 



4. ambig-ua Eli. var. capitata E. Ost. 



(Coudes) m 



5. Stauroneis aneeps Eh. var. crassa E. Ost. 



(Coudes) : 12 ! 



6. aiiceps var. hyaliua M.Per. f a crassa 



E. Ost. (Coudes) 1^5 



7. Mastogloia elliptica var. punctata Cleve (Cou- 



des) m 



8. Fragilaria Zellerii Herib. t' a anomala E. Ost. 



(S Robert) 1^" 



9. Synedra affiiiis Ktz. f a anomala E. Ost.(Eoyat) 27 



10. Hantzschia ampliioxys Grun. var.Royatense E. 



Ost. (Royat) ...'. 25 



11. Melosira Ostrupii Herib. (Royat) 'J(i 



12. spinulig'era var. spinosissima M. Per. 

 (Coudes) 121 



!'). (Jomplionema gracile Eh. var. naviculoides E. 



Ost, (Coudes) 120 



14. Xavicula Chassagnci Herib. (Chateauneuf) ... 57 



15. Rhoicospheiiia Sp.? E. Ost. (St-Floret) M2 



16. Rhopalodia s]>. ? f a nionstruosa E. Ost. (Com- 



pissade) 64 



17. Navicula mutica var. capitata E. Ost. (Rouzat). ")-"! 



18. var. entoleia E. Ost. (Coudes) 1'JC 



19. Gomphonema Sanrte Florentense E. Ost. (St- 



ret) 1-'50 



20. Xavicula Conierei Herib. (S 1 Robert) KV> 



21. Surirella cordiformis E. Ost. (Gimeaux) ">" 



