280 



171. E. pectinalis(Kutz.)Rbh., V.H.Syn. tab.XXXIII, figs.15 — 16. 



Found scattered about in many of the gatherings. A single gathering 

 from Vatnsdal (Sy der 6) consists almost exclusively of this species. 



Var. stricta Rbh., V. H. 1. c , fig. 18. 



Var. minor Rbh., V. H. 1. c, figs. 20— 21. 



These two varieties occur rather often mixed with tlie main species. 

 The form Himantidiiim Soleirolii Kiitz. W. Sm. Syn. tab. XXXIII, lig. 282 b' 

 occurs rather often intermingled with the typical form and forming parts 

 of the bands. 



In lig. 46 (^^Vi) I have figured an Eiinotia which I found in a 

 gathering labelled: »Freshwater algæ from a stream near Kedlerne« 

 near Thorshavn«. L. 0,044 mm., B. 0,01 mm. Striæ 15 in 0,01 mm., 

 S^ delicate, transversely lineate, radiant, in the middle more distant. 

 ^ Terminal nodules situated at the ventral side. This somewhat 

 short and proportionally broad form perhaps ought most properly 

 to be regarded as a variety either of E. monodon Ehr. or of 

 E. pectinalis. In Lule Lapm. p. 31 A. Cleve mentions an E. pect. var. 

 compacta v^diich with regard to its dimensions agrees falrly w^ell 

 Fig. 46. with the species in question; it is not figured. 



172. E. incisa Greg., V. H. Syn. tab. XXXIV, fig. 85 a. 

 Here and there. 



Var. obtusiuscula Grun., V. H. I. c, fig. 35 b. 

 Sand (San do). 



173. E. tridentula Ehr. var.'? perminuta Griin., V. H. Syn. tab. 

 XXXIV, fig.s. 29—30. 



Kirkebokamp (Stromo); Sando Bæk (San do). 



174. E. prærupta Ehr., V. H. Syn. tab. XXXIV, fig. 19. 

 Rare. Kirkebokamp (Sando. 



Fornia curta, V. H. 1. c, fig. 24. 



Occurs in several of the gatherings, but ahvays onlj' sparingly. 



Var. bidens Grun., V. H. 1. c, fig. 20. 



Here and there, mixed with the above. 



175. E. robusta Ralfs var. Papilio Grun., V. H. Syn. tab. XXXIII, 



fig. 8. 



Kirkebokamp (S trom 6); Trangisvaag (Sydero). Onh' a few ex- 

 amples from both piaces. 



Var. Diadema (Ehr.) Ralfs, V. H. 1. c, fig. 12. 



Ornefjæld (Sydero); Næs (Oster 6); Sand (Sando). As the above, 

 sparingly only. 



176. E. Triodon Ehr., V. H. Syn. tab.XXXIII, fig. 9. 

 Rare. Klakken (Bord 6). 



