84 '"• HnR<iKSKN. 



Kuîistruin lOhrcMih.. Hall's. 

 1. E. binale ( Tmp.) l^lirenb.. Herlin. Monatsber. 1.S4U, p. 208. 

 Ralfs, Brit.Desm., p. 90, lab. 14, fig. S (partim). 



Holdt. Desm. (Ironi., p. .S (Kiiiif,' Oskars liamn). 



Horgc'sen, Ferskvandsal}^. Ostj^ronland. p.31 (Danmarks 0, Gaasefjord, Hekla Havn). 

 Larsen, Freshw. Alg. Kast (Irecnl., p. 511 (in several localities from Kordlortok 

 65° 40 to Sabine 74° 30). 



Forms like Half's fig. 8 b and e were found in collections from 

 Vester Elv. 



Long. =- 22 n. 



subspec. dissimile Nordsl., Desm. arct. p. .'il, tab. VIII, fig. 31. 



Found in a gathering from tiie same locality. 



Long. = 28 /i; lat. = 20/y. 



Loc. Danmarks Havn. 



2. E. cuneatum Jenner in Ralfs, Brit. Desm., 

 p. 90, tab. 32,^ fig. a a. 



Boldt, Desm. Grønl., p. 7 (Kung Oskars hamn). 



Børgesen, Ferskvandsalg. Østgrønland, p. 31 (Hekla'Havn). 



The form found (Fig. 5) was somewhat^smaller 

 than the typical form and had somewhat narrower 

 apices. It seems to come rather near the form men- 

 tioned by Raciborski in Nowe Desmidyje, p. 30, 

 tab. VI, fig. 8. Cfr. also Boldt, I.e. p. 7, tab. 1, fig. 7. 

 Long. = 86 /y; lat. ^-^42/^. 

 Fig 5 E cuneatum O^ily ^ few specimens were found in two coUec- 



Jenner. Forma, tions from Vester Elv. 

 {^^•'"li). Loc. Danmarks Havn. 



3. E. elegans (Bréb.) Kûtz., Phycol. germ., p. 135; Ralfs, Brit. 

 Desm., p. 89, tab. 14, fig. 7 a— d. 



Boldt, Desm. Grønl. p. 9 (Kung Oskars hamn). 

 Børgesen. Ferskvandsalg. Østgrønland, p. 31 (Hekla Havn). 



Larsen. Freshw. Alg. East Greenl. p. 91 (in several localities from Kordlortok 

 65° 40' to Sabine 74° 31'). 



Forms like Ralfs fig. 7 a and b (1. c.) were found in Vester Elv 

 and a small lake at Hvalrosodde. 



Loc. Danmarks Havn, Hvalrosodde. 



4. E. tetralobum Nordst., Desm. arct. p. 30, tab. VIII, fig. 30. 

 This characteristic and, it seems, true arctic species was not 



earlier known from East Greenland. Hitherto it was only known 

 from Spitzbergen and Nova Zembla. 



The form observed quite agreed with the figure and description 



of NORDSTEDT. 



Long. = 89;/; lat. = 64/^. 



It was found in several collections from Vester Elv. 



Loc. Danmarks Havn. 



