84 Morten P. PorsiLo. 
| 166. Arabis arenicula (Rıcn.) Giz. (Sisymbrium humifusum 
J. Vaur. Parryae sp., Eutremae sp. ÅUTT.). 
On new moraine, gravelly and sandy fell-field and most commonly 
found in river-deltas, washed down from the hills. 
Disko: The northland: the coast and the great valleys; from Qutdligssat 
to Nordfjord, being rather common here (P.); N. Laxebugt on the west coast and 
Kuanerssuit in Diskofjord (Th. Fr.). 
Mainland: The great valley and the Waygat-coast of Nügssuaq peninsula 
rather common (P.); south hereof rare: Eqe 69°42” near the glacier (P.); Pâkitsoq 
about 69°30’ (V.). 
A northern type; south of the mentioned places only seen a 
few times either alpine or washed down from the highland, but found 
right down to the south point of the land. 
Abundantly flowering and fruiting. 
To be sure often snowless during winter. 
4 167. Nasturtium palustre (L.) В. Br. 
Found once at the river of $. Strømfjord, about 67° (Jens.) and once at about 61°. 
A decided southern type. 
Е 168. Braya humilis (С. А. Mey.) Вовгхзом (Sisymbrium h. 
Ce AU Mint) 
On lime-charged soil and raised marine clay. 
From a few places at the head of S. Strømfjord (Jens.). Portage between Itiv- 
dleq and S. Stromfjord about 66°30’ (P. & E.), here in great quantities and locally 
the most characteristic plant. Here decidedly perennial and not hapaxanthie as 
recorded by LEDEBOUR. Cfr. LANGE Consp. II, p. 252). 
A southern type, in Greenland only known from the mentioned 
places, but in America to be found right down into the temperate area. 
Flowers and fruits abundantly. 
Undoubtedly hibernating under snow. 
V 169. Braya purpurascens (В. Br.) ВомсЕ; Platypetalum В. Br. 
On new moraine, sandy and gravelly fell-field, from here often 
washed down and to be found in the river-deltas. Often growing in 
company with Arabıs arenicula. 
Disko: The north-east coast from Asuk to Kügänguaq (Th. Fr.; P.), and 
from the valleys beyond the coast (P.). Diskofjord: at the great glacier north of 
the inmost branch at Kuanerssuit about 69°40’ (P.). 
Mainland: The great valley of Nugssuaq peninsula, rather common (P.); 
the Waygat-coast from several places (several collectors); Ritenbenk, 69°42’ (V.). 
