— 60 — 



Art 



Watzelsteg 



Hoher | 

 Bogen 1 



Ludwigs- 

 thal 



Bernhards- 

 wald 



oo. iTOinpuoiiciiid coiisiriciinii üjJirDg. 



+ 









oy. — acuminaium üiurog. 



+ 









60. — angustatum Kütz. 



+ 









var. producta Grun. 



+ 





+ 





var. angustissima Grun. 



+ 









oi. - — iiiiiicaiuiii ivmz. 











62. — montanum Schum. 





+ 







var. subclavatum Grun. 



+ 



+ 



+ 





63. — gracile Ehrbg. 





+ 







var. aurita V. H. 



+ 









04. — parvuium nuiz. 



+ 



+ 



+ 



+ 



var. exilissima Grun. 



+ 



+ 





var. subcapitata Grun. 



+ 







65. Cynibella aequalis Sm. 





+ 







66. — lanceolata Ehrbg. 





+ 







o/. — aspera xjiirDg. 











68. - — cistula Hempr. 



+ 









oy. — parva sm. 



+ 









70. — amphicephala Naeg. 



+ 



+ 



+ 



+ 



71.- — ventricosa Kütz. 





+ 



+ 



+ 



var. laevis (Naeg.) 





+ 



! 

 1 



72. Amphora ovalis Kütz. var. pedi- 









culus Kütz. 



+ 



+ ! 





73. Nitzschia amphioxys Kütz. 









+ 



— var. capitata Fant. 









+ 



74. — commutata Grun. 











75. — linearis Sm. 





+ 







76. — thermalis Kütz. var. minor 











Grun. 



+ 







+ 



77. — frustulum Grun. 









+ 



var. Hantzschiana Grun. 









+ 



78 Ssiirirpllfi hi^priata Tfcrph var tu u - 











xima Grun. 



+ 









var. obtusa Maly. 











var. constricta Grun. 



+ 









Taf. VII Fig. 29 



Taf. VI II Fig. 14 

 Textfigur 

 Taf. VIII Fig. 15 



