264 
46. 
48. 
49. 
MORTEN P. PORSILD. 
Oxyria digyna (L.) Camp». 
In herb-mats and bogs, оп moist morainic soil and rock-ledges, 
common. 
Sagina intermedia FENZL. 
Common. 
N. Sagina caespitosa (J. VAHL) LANGE. 
Common. 
Alsine biflora (L.) WAHLENB. 
Common. 
T. “Alsine Rossii” is recorded by Taytor, but as shown by 
Simmons (IV р. 470), Taytor has not known this species. 
Alsine verna (L.) WAHLENB. 
Common. 
Arenaria ciliata L. var. humifusa (WAHLENB.) Hart. 
On wet sand in river-heds, rather common. 
Ammodenia peploides (L.) Rupr. 
On sandy sea-shores, rare. 
Stellaria humifusa Воттв. 
On clay near the shore, sometimes on wet cliffs. 
Stellaria longipes GOLDIE. ees 
In herb-mats, heaths and on manured spots on cliffs and sea- 
shores. 
Cerastium trigynum VILL. 
Amongst mosses and on wet clay and gravel on the south coast. 
Cerastium alpinum L. 
Everywhere and as usual very variable. 
On the east coast, near Umivik and Aumarutigsat a form was 
observed on clayey, morainic soil that differs considerably from 
most of the common variations in Greenland. At first, I regarded 
it as О. caespitosum MALMGR. but after consulting the recent 
papers by Simmons and OSTENFELD, I think it must be identical 
with the condensed pulvinate forms, mentioned by SIMMONS as 
“Form 3” and “f. pulvinata.” In contradistinction to the Elles- 
mereland forms the plant from Hare Island flowered richly. 
The pulvinate plants occurred over rather extensive areas, 
here and there intermingled with specimens of the ordinary 
form. Although Simmons found his “form 3” on soil of the same 
kind and states that in drier places it formed a transition to 
the ordinary ones, I cannot regard the form from Hare Island 
as a mere ecological variation, but I should be inclined to think 
from its occurrence together with the main form that it may 
prove to be a hereditary form. I have brought living specimens 
