279 



RHOPALODIA O. Muller. Engl. Bol. Jahrb. XXII, 1895. 



161. Rhopalodia gibba (Kiitz.) O. M., V. H. Syn. tab. XXXII, 

 figs. 1 — 2. 



Not rare in many of the gatherings I have had for examination. 



162. R. ventricosa (Grun.) O. M., V. H. Syn. tab. XXXII, figs. 

 4-5. 



Frequently interniingled with the above. 



163. R. parallela (Grun.) O. M., V. H. Syn. tab. XXXII, fig. 3. 

 Here and there mixed with the two above -mentioned. A short 



form of R. parallela appeared in a gathering labelled: »Algæ, ravine 

 near Vaag« (Sy der 6). 



164. R. gibberula (Ebr.) var. rupestris (Grun.) O. M., Sm. Syn. 

 tab. I, fig. 12. 



Not rare, but never in large quantities in any of the gatherings. 



EUNOTIA Ehr. 1837. V. H. Syn., p. 141. 



165. Eunotia Arcus Ehr., V. H. Syn. tab. XXXIV, fig. 2. 

 Kirkebokamp f S t r 6 m 6). 



Var. uncinata Grun., V. H. 1. c, fig. 13. 

 Thorshavn (Stromoi. 

 Var. bidens Grun., V. H. 1. c, fig. 7. 

 Thorshavn, Kirkebokamp (S trom 6). 



166. E. impressa Ehr. var. angusta Grun., V.H. Syn. tab. XXXV, 

 fig. 1. 



Kvalbo (Sydero). 



167. E. major (W. Sm.) Rabh., V. H. Syn. tab. XXXIV, fig. 14. 

 Here and there. 



Var. bidens (Greg.) W. Sm., V. H. 1. c, fig. 15. 

 Thorshavn (S trom 6). 



168. E. gracilis (Ehr.) Rabh., W. Sm. Syn. tab. XXXIII, fig. 285. 

 Not rare. 



169. E. exigua Bréb., V.H. Syn. tab. XXXIV, fig. 11. 



Not rare, but generally occurs only in small quantities in the gatherings. 



170. E. Nymanniana Grun., V.H. Syn. tab. XXXIV, fig. 8. 

 Not rare in a gathering from Hojvig (Stromo). 



