so 



ERNST 0STRIP 



423 

 424 

 425 

 426 

 427 

 428 

 429 

 430 

 431 

 432 

 433 



43G 

 437 



4 as 



439 

 440 

 441 

 442 

 4415 

 444 

 14.') 

 44<; 

 447 

 448 



ll'.i 

 450 

 451 

 152 

 453 

 I.', I 

 455 

 45(1 

 457 

 458 



anceps gracilis 

 hyalina 

 lincaris 

 siberica. . . . 



javanica , 



Legumen 



obtusa. ... 



pa rv ul a prod , 



Phoenicentefon 



amphil. 



Smithi . . 



Stenopterobia 



434 intermedia 



Stephanodiscus 



435 Astra-a 



Surirella 



biseriata 



Engleri ang 



linearis 



constricta. . . 



Molk'riana 



ovalis angusta 



minuta 



ovata 



pandurif. . 



pinnata 



robusta 



splcudida . . . 

 turgida 



Synedra 



Acus 



delicatiss 



mesoleja 



ampbicepli 



austriaca , 



capitata 



famelica minusc. . . . , 

 Camiliaris major . . . . 



puldidla 



navifiil. . 



