267 



Farn. 31. Typhaeeae. 



116. Spargamiim minimum Fries. 

 Rosenvinge Tillæg, p. 709. Anm. p. 710. «Sparganium» in 



В. G. Nathorst. Kritiska anmärkn. om den grönl. vegetat. hist. 

 Bihang t. kgl. sv. Vet.-Akad. Handl. Hd. 16, III, Nr. 6, 1890 

 p. 17. Ostenf. Fl. arctica p. 18. 



Very rare, in ponds with 20 — 40 ctm. deep v^ater, sometimes 

 drying up in August. The stems are 30 — 40 ctm. long, with 2 — 3, 

 60 — 80 ctm. long floating leaves, 1 — 2 female heads without or 

 with one short stalk; sometimes the lower one is free from the 

 ligule; 1 male head. Flowers in the middle of August, sets 

 ripe seed. 



Amakà in one of the ponds, Sparganium-Dam in Elvbakker 

 near Tasiusak. 



The Sparganium mentioned by Prof. Nathorst 1. с. is un- 

 doubtedly the above named species and the finding place is un- 

 doubtedly my locality, „Sparganium-Dam", passed by N. on his long 

 walking tour on the 4'^ of September 1883. 



Fam. 32. Potamogetonaeeae. 



117. Potamogeton filiformis Pers. 

 Rosenvinge Tillæg p. 710. P. marinus Lge. Consp. Fl. 



Groenl. p. 117 & 282. 



Found but in a single place in a pond with abt. 30 ctm. water 

 and sandy ground covered with a layer of mud abt. 2 ctm. thick, 

 10 — 20 ctm. high; stems with numerous leaves shoot out from the 

 thin, white, creeping rhizome; sterile. 



Amakâ. 65° 39' lat. N. 



Fam. 33. Orehidaeeae. 



118. Habenaria albida (L.) R. Br. 



Lge. Consp. Fl. Groenl. p. 118 & 282. 



Rare, on herby and grassy slopes ; abt. 20 ctm. high with four 



