The Flora of Disko Island and Adjacent Coast of West Greenland. 31 
A 25. Potamogeton pusillus an L.? (P. groenlandicus Hacsrr.) 
Collected several times in the vicinity of Diskobugt; perhaps 
more careful observation will prove the plant to be of not infrequent 
occurrence. 
Disko: A pond at the blubber-yard at Godhavn 69°15’ (P.). 
Mainland: Sarqagq 70°0’ (Htz.), the north-limit of the species, Ritenbenk 
69°45’ (S. H.); Jakobshavn 69°13’ (Soer.); Claushavn 69°5’ (Bg.); Christianshaab 
Orpigssuit (Htz.) 68°37’; Egedesminde (Bl.); Sofiahavn 68°25’ (B1.). 
For the rest only known from a few localities in the southernmost 
part of Greenland, most likely overlooked. 
A 26. Potamogeton filiformis Pers. (P. marinus L. p. p.). 
This species has been found a few times in the fjords inland from Holstein- 
borg 66°58’(W. & H.), and here later on found to be commonly extended in all smaller 
ponds (P. & E.); at the head of S. Stromfjord about 67° (Jens.); Itivdlinguaq 66°29’ 
in the southmost part of Greenland, being no doubt common here. 
The next domain is in the vicinity of the Sydost-Bugt: Manitsoq at Egedes- 
minde 69°45’ (Bl.); Tasiussarssuaq and the passage to this place about 68°30’ (Be. 
and others); at the head of Orpigsdq 68°40’ (Htz.); Christianshaab 68°45’ (V.). 
Further it has been found isolated at Narssaq on Disko 69°52’ (Th. Fr.); 
Nuigssuaq Peninsula: Atanikerdluk 70°65’ (Htz.) and Ikerasak 70°30’ (Vh.), the 
northern limit of the species. 
In some of the mentioned localities the species were flowering. 
IX. Juncaginaceae. 
A 27. Triglochin palustre L. 
On strand-meadows, on lake-shores in marshes and periodically 
inundicated riverbeds. 
Undoubtedly often overlooked. 
Disko: From localities on the southern coast and Diskofjord (P.); Nordfjord: 
in the big valley from the head of the fjord about 70° (P.). 
Mainland: From Jakobshayn down to the fjord-complex inland from Hol- 
steinborg found so often as to be considered common. N. of Jakobshayn found now 
and then along the coast of Waygat up to Ata 70°15’ (P. and others); in the Nord- 
ost-Bugt at Ikerasak 70°30’ (Vh.) and Umanaq 70°43’ (Vh.) the northern limit of 
the species. 
A decided southern type, in the district not ascending to any 
height worth mentioning. 
Flowers and fructificates abundantly, but not every year. 
Hibernates abundantly covered by snow and sometimes also by ice. 
