The Flora of Disko Island and Adjacent Coast of West Greenland. 107 



X 210. Callitriche autumnalis L. 



Disko: The north-west coast at ca. 7()°10' (P.); at the mouth of Nordfjord 

 69°55' (P.); in pools in Blæsedalen at Godhavn G9°17' (E. P. ; Th. P.). 



Mainland: Sermerniiut at Jakobshavn 69°13' (P.); archipelago of Egedes- 

 minde: in some piaces in the Nivåq-Bugt 68°35' (Kr.). 



Only foiind in the mentioned piaces in Greenland. The specimens 

 from the two northmost plaoes are very small; the leaf-bearing sproiits 

 only 15 — 35 mm long with 8 — 14 pairs of leaves. The leaves 5 — 10 mm 



long, 0,4 0,8 mm broad. But the specimens from Blæsedalen sometimes 



become 20 cm long in favourable summers. 



Also in Greenland a perennial. 



XXVII. Empetraceae. 



I 211. Empetrum nigrum L. 



In heath, moss-bogs, sometimes at the edges of willow-copses. 



Very common throughout the whole area. 



Widely distributed in Greenland, without southern limit and 

 perhaps also without northern limit. 



From the coast ascending to considerable altitudes, but not as far 

 as, for instance, Cassiope tetragona^ and never as a pioneer on fresh 

 morainic soil. 



Abundantly flowering and fruiting. 



Normally covered by snow during winter. 



Empetrum is the most important heath-species for the natives, 

 who use it for fuel; the berries are commonly gathered and eaten. 



XXVIII. Onagraceae. 



A 212. Epilobiuni anagallidifolium (L.) Lam. 



In open spots in moist heath, inoist piacos in fell-fields, often on 

 fresh moraines, along water-courses; sometimes in herb-mats. 

 No doubt often overlooked because of its diminutiveness. 



Disko; On the south-land and the valleys here, Diskofjord and Mellemfjord 

 known from many piaces; undoubtedly rather common. In valleys from the head 

 of Nordfjord, common; the north-west coast, rather common far from the coast (P.). 



Mainland: Paotut 70°12' (Htz.); southwards not observed till N. Isortoq 

 67°16' (Ros.) and Holsteinsborg 66°55'. (W. & H.); no doubt overlooked. 



A southern type; north of the area found a few times up to 

 72°8' (P.), Also overlooked south of the area; it seems to prefer the 

 coast -region, not being able in competition to hold its own. 



