1898—1902. No. 16.] FLOW. PLANTS AND FERNS OF N.-W.GREENLAND. 37 
Eriophorum Scheuchzeri Aira caespitosa 
— polystachium Arctagrostis latifolia 
Festuca ovina Alopecurus alpinus 
Glyceria distans* ~~ Hierochloa alpina 
Poa glauca Lycopodium Selago 
— cenisia Equisetum arvense 
Catabrosa algida Cystopteris fragilis 
Trisetum spicatum Woodsia glabella. 
All these are circumpolar species, even though some of them, those 
marked with a “*” are absent from Spitsbergen. 
The Group I, 2, Carex glareosa and Glyceria angustata, not known 
with certainty from the arctic coast of America, may yet be found there 
and belong to the circumpolar, more ‘or less ubiquitous plants; as is 
also the case with Group I, 3: Draba nivalis, Ranunculus pygmaeus, 
Melandrium affine, Elyna Bellardi*, which are not yet collected in 
the Arctic Archipelago but which will certainly be found there. Group 
I, 4 contains 4 species, of which 3, Sagina intermedia, Carex ursina 
and Glyceria Vahliana, as far as may be concluded from our present 
knowledge of their distribution, will certainly yet be found in N. W. 
Greenland and the Archipelago. Of the species as yet lacking in the 
list of N. W. Greenland (Group I, 5), Erigeron uniflorus, Cardamine 
pratensis, Carex capillaris*, Poa pratensis, Equisetum variegatum, 
and Woodsia ilvensis*, will certainly be found there; the last species, 
Carex ustulata, is, as far as our present knowledge goes, very spora- 
dically distributed on the American side and especially in Greenland, but 
is also circumpolar. 
Lastly we get from Group I, 6, two species, Arenaria ciliata and 
Glyceria maritima, not yet reported from any arctic part of America 
besides Ellesmereland, which must also go here as having been pro- 
bably overlooked in the Archipelago and Arctic Coast as well as in 
Asia. Thus we get from Group I, 68 species which are circumpolar 
and mostly rather ubiquitous. In the following these will be designed 
as Group U. 
We have still, however, 22 species of Group I left. Among these 
the following 4 species from Gr. I, 1, decidedly have their home in 
America: Erigeron compositus, Dryas integrifolia, Saxifraga tri- 
cuspidata, Lesquerella arctica. To these may be added Arabis areni- 
cola from Gr. I, 4. Alone of them, Dryas, goes over to the north- 
eastern extremity of Asia. These species and some more mentioned 
below, may form Group A. 
