The Flora of Disko Island and Adjacent Coast of West Greenland. 93 
granulated rather than tuberculated. — For this investigation | had, 
however, only a scanty material at my disposal. 
S. stellaris grows in luxuriant herb-mats and moss bogs and is common in South- 
ern Greenland up to 65° (Ros.). In our area it is recorded from Manitsoqg, 68°45’ and 
Ikamiut, 68°30’ by Bertin. I have not seen the specimens, and therefore I cannot 
ascertain, whether they merely were flowering individuals of the subsequent species 
or not. We have searched for S. stellaris in the southernmost part of our area, but 
mostly in vain; only once, at Ivnalik in N. Stromfjord, 67°50’, did we find spe- 
cimens of the true 8. stellaris, not yet flowering Aug. 6. 1918. 
A distinct southern type, the above mentioned places are the 
northern limit in West Greenland. 
Vv 189. Saxifraga comosa (Rertz.) Brirron (Spathularia 
foltiolosa (R. Br.) SMAtt. 
In moist moss on bogs and heathland sometimes in manured soil 
and in moist places in alpine situations. 
Very common throughout the whole area, but less prominent and 
preferably alpine in the southern part. Hence considered a northern 
type. 
Widely distributed in West Greenland without northern limit, 
decreasing southwards though found right to 62°. Not known from the 
southern part of the east coast, where S. stellaris, according to Kruuse, 
occurs at least to 67°. 
In favourably exposed places flowering and also fruiting (see 
remarks to the preceding species); besides producing bulblets in abund- 
ance. In unfavourable places the flowers fail to appear at all. 
Hibernates covered by snow. 
| 190. Saxifraga rivularis L. 
In wet places, moist moss, at the borders of brooks and lakes and 
often in manured soil; from the brackish lagoons at the shore ascending 
to the melting edges of the snow-fields. 
Very common throughout the whole area. 
Widely distributed in Greenland without southern or northern 
limit. 
Hibernates covered by snow and very often by ice. 
Varies very much according to the quality of the habitat. Most 
of the forms are coloured red by anthocyane; but among the various 
forms there is one with green leaves and white flowers almost without 
anthocyane-formation. The occurrence of this form does not seem to 
be dependent upon the habitat, judging by the wanting transition-forms 
when growing among the red forms; and apparently it seems to be her- 
editary constant. (Comp. Porsttp: Medd. om Grld. 50, p. 377). 
