166 
Simmons, Kemarks about the Eelations of tbeEloras etc. 
relatecl to that of Spitzbergen as Jönsson thinks, on tbe con- 
trary we must agree with Rosen vinge tbat it is very closely 
allied to tbat of tbe western coast. 
But liere a new question arises: is tbe flora of east Green¬ 
land uniform all along tbe coast? To get an answer to tbis 
question I liave noted bow far soutliwards on tlie coast tbose 
species grow, wliicb are not found on tbe west side. Rone of 
them reaclies to tbe soutli of 65°, for several tbe soutbern limit, 
as far as known at present, lies to tbe nortb of tbe 70 th 
parallel. On tbe otber band several more or less common 
AVest-Greenland-algae do not from Cape Farewell reacb furtber 
up on tbe east coast tban to tlie 66 th parallel or tbere ab out. 
I liave bere only taken into consideration sucli species as are, 
witbin tbe arctic regions, only found in Greenland, as tbese 
seeni most fit to tbrow ligbt upon tbe problem about tbe 
uniformity of tbe east-coast-flora. At least 10 sucli species 
are only found in soutbern East Greenland, viz.: 
Edocarp us pyci i ocarpus 
— siliculosus 
Coilodesme bulligera 
Physematoplea attenuata 
Maria Pylaii 
Agar um Turneri 
Lamin aris longier uris 
— groenlandica 
Delesseria spinulosa 
BJiodochorton membranaceum. 1 ) 
If a comparison is made by means of tbe previous method, 
we find: 
Soutbern ^ Northern -t . i 
East - G-reenl. ommon jjast-Greenl. 
Number of species 10 63 12 85 
Per et. of total number 12 74 14 
Tbrougli taking into consideration also tbe distribution witbin 
tlie Greenland-area of more widely spread algae. tbe percentage 
of soutbern species would be still more augmented at tbe cost of 
tbe species common to tlie wliole coast, but I tbink tlie difference 
between tbe northern and soutbern flora will appear as clearlv, if 
only tbe distribution of tbe Laminariaceae is considered. Tbe 
distinctly american species Laminaria longicruris 2 ) and Agarum 
Turneri do not reacli above 66 0 and about tlie same latitude 
also tbe endemic Lam. groenlandica , and Maria Pylaii , arctic 
only in Greenland, bave their limit, On tbe otber band 
Laminaria saccharina (var.) and L. Agardhii (dubious) bave their 
soutbern limit, tbe former at 69°, tbe latter at 74° (?). TJn- 
questionably tbis remarkable mode of distribution must somebow 
stand in connection witli tbe former landbridge between Ieeland 
and Greenland, tliat lias reached tbe Greenland coast between 
tbe 65 th and 69 th parallel, as is still pointed out by tbe sub¬ 
marine ridge in the Denmark Straft, Tbat two species, Alaria 
b Also found at Jan Mayen. 
2 ) As it is only found at one point and not (yet?) fartlier soutli. too 
great importance must not be attaclied to it. 
