168 



IL Phseophycese. 



1. Hydruraceae. 



Hydrurus. 

 1. H. penicillatus Ag. — Probe 8, 11, 32, 51 u. 5o. 



2. Diatomacese. 



Achnanthes. 

 1. A. linearis W. Sm. — Probe 36 (r) *). 



Caloneis. 



1. C. fasciata Ldt. — Probe ^9 (r), 36 (r). 



2. C. silicula Ehb. — Probe 15 (r), 29 (fqs). 



Cocconeis. 



1. C. (Achnanthidium) flexella Bréb. — Probe 16 (fq), 21 



(fqs), 29 (fqs), 36 (fq). 



2. C. Pediculus Ehb. — Probe 21 (fqs). 



Cymbella. 



1. C. sequalis W. Sm. — Probe 16 (r), 29 (r), 36 (fqs). 



2. C. affinis Ktz. — Probe 18 (fq). 



3. C. aspera Ehb. — Probe 15 (r), 21 (r), 29 (r). 



4. C. Cesatii Rabh. — Probe 36 (fq). 



5. C. cistula Hempr. — Probe 21 (r), 36 (fq). 



*) rr = rarissime 

 r = raro 

 fqs = frequentius 

 fq = frequenter 

 fqq = frequentissime. 



