1899] FERNALD-SORNBORfiER— La1?KAD0R FLORA. 93 



rare occurrence. In fact, Cardiiutine belltdifolia, found during 

 the past three-fourths of a century at only four stations in 

 British America, may be considered a very rare plant. Another 

 species, P/eurogyne carinthiaca, var. pusi//a, growing in Green- 

 land and at various stations about the mouth of the St. Law- 

 rence, and reported by Pursh from the White Mountains of 

 New Hampshire, is apparently a very rare plant in Labrador, 

 collected by the Bowdoin College party for the first time since 

 Hooker's report of its occurrence there. 



Five species not before known from the Labrador coast 

 have been without doubt recently introduced from Europe or 

 the more settled portions of America. These are Stcllaria 

 media, Thlaspi arvense, Eroditim ciciitarium, Senecio vulgaris, and 

 Taraxacum officinale. Rumex acetosella and Ra7iuiiculus rcpcns 

 should probably also be included in this list. In Packard's "Lab- 

 rador coast" (449), he quotes from Koch ^" ' The northernmcst 

 valleys in which firs grow open into Napartok Bay. North of 

 Napartok Bay ( Napartok means fir ) [ more properly spruce] 

 are found only dwarf willows and birches ; mosses and lichens 



form the principal covering of the ground ' " These 



valleys, opening from the mainland are somewhat sheltered, and 

 it is here that the Eskimo of Hebron secure their fuel and build- 

 ing material. On the more exposed Takatak Island at the 

 mouth of the bay, however, spruce trees attain considerable size. 

 This station, some fifteen miles nearer the open sea than the 

 mainland valleys, is probably the northern limit of trees on the 

 exposed coast of Labrador. North of Napartok Bay, within ten 

 miles of the mouth of Kangerdluksoak Bay, willows grow to a 

 height of at least eight feet. 



In the following list the species already discussed and many 

 others of note are enumerated in the order of Engler and Prantl, 

 and their Labrador stations so far as Known are recorded. 



*W00DSI.\ Il.VENSIS, R. Br. 



Rama, July 15-Aug. 20, 1894. coll. Adolf Stecker C Sorn- 

 borger. No. 2 ). 



