The Flora of Disko Island and Adjacent Coast of West Greenland. 29 



V. Isoétaceae. 



J. 18. Isoétes echinospora Dur. 



A pronounced southern type found at Tasiussarssuaq, Sofiehavn 68°26' 

 (BL), otherwise not known till between 60° and 61°. 



The specimens were sterile. 



Gymnospermae. 



VI. Pinaceae. 



A 19. Juniperus communis L. var. montana Ait. 



On warm sunny rock-slopes. 



A southern type known from several localitles in the fjords inland from Hol- 

 steinsborg, but by no means common. In the interior of N. Strømfjord rare f. inst. 

 Eqaluarssuit 67°36' (P. & E.); Ipiutarssuaq 67°44' (P. & E.); Sarfarssuaq 67°60' 

 (Korn.); Ugssuit 67°58' (P. & E.); at Tasiusarssuaq 68°28' (BL); Orpigssuit 68°35' 

 (Engell). 



Finally, according to verbal communication from Mr. P. Dalager, it is said 

 to occur at the head of Kangersuneqfjord 68°50' and thus we have the north- 

 limit here. 



All above mentioned localities are in the lowland. 

 Most of the observed specimens were abundantly fruiting. — No 

 doubt covered by snow in winter, but early snowless in spring. 



Monocvtvledones. 



VII. Sparganiaceae. 



± 20. Sparganium submuticum (Hartm.) Neum. 



Waterplant. 



A decided southern type collected only in the following piaces: Naujat 

 70°0' (Htz.); Orpigssuit 68^37' (Htz.); Tasiussarssuaq 68^28' (Bg. refound by BL); 

 Nivåq Bugt, several piaces (P. &E.). Aulatsivik settlement 68°10' (Kr.). Other- 

 wise not observed till south of 64°, but likely often overlooked. 



Some of the above mentioned findings were fruiting. 

 Hibernates under or enclosed in ice. 



VIII. Potamogetonaceae. 



Flowering, f ructification and wintering. 



All the species of this family, as well as the rest of the Greenlandic 

 true waterplants, occur in shallow water especially in ponds that freeze 



