226 



147. C. punctulatum Bréb. 



Gliversrejn (Str.); Skopen and Sand (San do). 



148. C. subpunctulatum Nordst. 



In a gathering from Klakken near Klaksvig (Bor do) a form was 

 found which closely resembled my form in »Bornii. Desm.« p. 144, 

 tab. 6, fig. 4. 



Long. — 32 n; lat. — 26 jw. 



This form is later on described by West as a new variety : var. 

 Boergesenii West (Freshw. Alg. of West Ireland p. 154), but it is 

 very doubtful if this ought to be retained as \ve are here dealing 

 with a species highly variable and rich in forms (cfr. Schmidle: 

 Ueber die individuelle Variabilitåt einer Cosmarienspecies, Hed- 

 wigia 1893); cfr. also Borge N. Notar. 5, p. 511. 



In the large lake near Ejde (Ost.) a closely related form was found 

 in Plankton. 



149. C. subspeciosum Nordst. 



Occurs in gatherings from Skjælling (Str.); and from mountain 

 heights (450 m.) on Bordo. It was also found by Wille (1. c. p. 27). 



150. C. speciosum Lund. 



Trangisvaag and at the foot of Ornefjæld (Syd.); Grothusvatn 

 (Sando): mountan heights (450 m.) on Bordo. 



Var. biforme Nordst. Desm. Spetsb. p. 30, tab. 6, fig. 11. 



Long. = 72/m; lat. == 53^. 



Mountain heights, (450 m.) on Bordo. 



151. C. coeiatum Ralfs. 



Seems to be rather common in the Færoes; it often occurs in 

 gatherings, which are rich in Diatoms, but poor in Chlorophyceæ; it was 

 also found in a gathering from Bordo gathered at a hcight of 450 m. 



(3 spectabile Nordst. 



In a collection from Klaksvig (Bordo). 



152. C. Boeckii Wille. 



Skopen (Sand 6). 



153. C. subcostatum Nordst. 



Form like my figure in »Ferskvandsalg. fra Østgrønl.« p. 12, 

 tab. 1, fig. 4. 



Thorshavn (Str.). 



154. C. formosulum Hoff. 



Nordstedt Bornh. Desm. p. 194, tab. 6, fig. 6, 7. 



Long. — 45 fi; lat. — 40 //. 



In Plankton from Sorvaagsvatn (Vaago). 



