The Botany of Iceland - 01.12.1912, Page 92

78
H. JÓNSSON
Bangia fuscopurpurea.
Porphyra umbilicalis.
Chantransia secundata.
Polysiphonia urceolata.
Antithamnion floccosum
Ralfsia verrucosa.
Ectocarpus Stilophoræ.
Ectocarpus tomentosoides.
E. penicillatus.
Sphacelaria radicans.
Litosiphon filiformis.
Phyllitis zosterifolia.
Dictyosiphon Chordaria.
Castagnea virescens.
These species might possibly also be found in East Greenland,
as they are already known from West Greenland (see above), and
in that case there could be only 9 E. Iceland-species which were
not known from East Greenland.
In West Greenland there are 27 species which are not found
in Iceland. These are: —
0 Harveyella mirahilis.
Callymenia sangvinea.
Delesseria Montagnei.
Polysiphcnia elongata.
Ceramium Areschoughii.
C. septentrionale.
0 Rhododermis elegans.
Lithothamnion intermedium.
Chantransia collopoda.
0 Sorapion Kjellmani.
Ectocarpus Pringsheimii.
0 E. ovatus.
0 E. pycnocarpus.
0 E. maritimus.
0 Sphacelaria racemosa.
Phæosaccion Collinsii.
0 Symphyocarpus strangulans.
Kjellmania subcontinua.
Coelocladia arctica.
0 Delamarea attenuata.
Dictyosiphon hispidus.
Myriocladia cailitricha.
0 Laminaria solidungula.
0 L. longicruris.
L. cuneifolia.
0 L. groenlandica.
0 Agarum Turneri.
Of these species 13 (with 0 prefixed) are found in East Greenland.
In East Greenland 21 species are found which are not known
from Iceland. In addition to the 13 above-mentioned species, they
are the following: —
Chantransia efflorescens.
Dilsea intcgra.
Petrocelis polygyna.
Cruoriopsis h\rperborea.
Ectocarpus helophorus.
Haplospora globosa.
Punctaria glacialis.
Myrionema foecundum.
The greater number of the West Greenland and East Greenland
species here mentioned will probably be met with in Iceland, espe-
cially on the north and east coasts. It is less likely, however, that
the following species will be found in Iceland: — Callymenia sanguinea,
Delesseria Montagnei, Dilsea iniegra, Petrocelis polgggna, Laminaria
solidungula, L. cuneifolia, L. groenlandica and Agarum Turneri.
According to theabovecomparisonslceland most nearly resembles
Finmark, and next to that place the Færöes; the resemblance to West