Stray Contributions to the Flora of Greenland I—V. 15 
Salix chloroclados Fron. (S. groenlandica (AND.) LunDstr.), noticed in 
nearly all places visited but, as has already been said by Rosen- 
VINGE, markedly less abundant than in the middle parts of West 
Greenland. 
— glauca L., everywhere. The more or less erect willows forming 
thickets in South Greenland seemed to us rather different from 
what we generally supposed to be S. glauca at higher latitudes. 
According to Froperus, (Medd. om Grl. 63, 1923), probably no 
pure i.e. S. glauca free of hybridogenous admixture, is to be met 
with in Greenland, but these approach very close to the definition of 
what pure S. glauca should be, as it is given in FLoperus’ work, 
p. 122. 
Alnus crispa (Aır.) Pursn. (A. Alnobetula (Euru.) HARTIG, var. repens 
(WormskJ.) WINKLER). Neria; Björnedal, abundant. 
Betula. The southern part of Greenland is, as is well known, charac- 
terized by one dwarf-birch B. glandulosa Micux. and one higher 
and stouter species allied to B. pubescens EnrH., which on its 
best localities becomes tree-like, at its northern limit and in higher 
altitudes only shrubby. Also, hybrids between them have been 
suggested by previous writers. 
Our collections have brought nothing new as to the distri- 
bution, but they were handed over to Dr. J. G. GuNNARsson, the 
author of the very elaborate study of the birches of Scandinavia. 
(J. G. Gunnarsson: Monografi över Skandinaviens Betulæ, Arlöv 
| 1925). Dr. Gunnarsson’s naming of the tree-birch and its several 
hybrids with B. glandulosa is now at hand, but will no doubt 
be published by the author elsewhere. 
Rumex domesticus HARTM., not seen. 
— Acetosa L., no additional localities. 
— Acetosella L., common. 
Oxyria digyna (L.) Hırr., common. 
Koenigia islandica L., common. 
Polygonum viviparum L., common. 
— heterophyllum Lindm. var. boreale (LANGE) LinpM. emend., Sv. 
Bot. Tidsskrift. 6. 1912, p. 67. (Syn. P. avieulare L. var. borealis 
LANGE: Consp. Fl. Grl. 1880, p. 105; P. islandicum MEIssN. sec. 
Autt. Americ.), no additional localities, but quite common in 
inhabited places. 
Atriplex (an glabrisculum Evmonst.?) was found by N. Harrz at Taser- 
