176 
Simmo ns, Remarks abont the Relations of tbe Tloras etc. 
siognomy of tbe Vegetation at tlie parts of tbe european coast wa- 
sfiecl by its waters, but only by its influence upon tbe conditions 
of life, not directly as a bearer of new immigrants, wbere tbe 
necessary ways for tbe migration of algae are broken. Tliis view 
is supported, f. i., by tbe flora of tbe Faeroes, tbat, in spite of 
very favorable conditions of life, sbows a more nortberly cba- 
racter in tbe proportion of brown and red algae (45 and 55 per 
ct.) tlian even tbe nortbernmost portion of tbe norwegian coast 
(41 and 59 per ct.) Even tbe west Greenland coast bas a great 
number of soutbern forms, tbat do not enter otber parts of tbe 
arctic area (23 species), and liere no drift-tbeories can be brougbt 
into action. 
It is previously mentioned tbat tbe flora of tbe Polar Sea 
bas a very mucb greater affinity to tbat of tbe Atlantic tlian 
to tbat of tbe Pacific, tlie percentage being 87 and 44 resp. 
Tbis doubtless will be attributed by tbe partisans of tbe drift- 
tlieory to tbe migbty influence of tbe Grulfstream, for my part 
I seek tbe solution of tbis problem in tbe present or former 
existence of a greater number of coast-ways for immigration 
and furtber in tbe previously mentioned circumstance, tbat a 
mucb greater number of tbe preglacial-polar (tbe original 
arctic) species bere bad. found an asylum, wliile tbe Be¬ 
ring Strait - way was tlie only one for tbe migration to and 
from tbe Pacific. 
Tbe liiere species-statistics and tbe few bints ab out otber 
points of view bitberto given, are not sufficient bowever 
to get a clear understanding of tbe degree of _ affinity be- 
tween tbe different floras, it also must be examined liow tbe 
families and genera are distributed outside tbe area bere in 
question. 
In tbe following table (VIII) all families are entered (alter 
En gier & Prantl) and tbeir distribution in different seas in- 
dicated. Eamilies not present in our area are set in ( ). 
Eor the others even tbe genera represented witbin tbis area 
are entered witb tbeir distribution (after De Toni, some du- 
bious statements bowever excluded, as also genera not repre¬ 
sented by identic species in tbe nortb Atlantic and Pacific). 
Monotypie genera are marked witb 1., 1 ? indicates tbat some 
species more is referred witb doubt to tbe same genus. Gre- 
nera not present in tbe Polar Sea, but witb identic species in 
tlie nortbern parts as well of tbe Atlantic as of tbe Pacific are 
marked witb*. 
