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246
carl skottsberg
above all upon observations made during the Swedish Antarctic
Expedition in 1901 —1903. While doing this, a comparison with the Arctic
Sea, as we know it especially through kjellman’s investigations, may
easily be made and several, perhaps most of the points of view, are
quite the same as those taken up by that wellknown author.1
In the survey of plants collected during the voyage of dumont
D’Urville 1837—40, we find among the cryptogamics two true
antarctic algæ, Scythothalia Jaquinotii Mont. und Desmarestia anceps
Mont. 2 In the absence of further information, we suppose they must
have been found floating in the sea off the Louis-Philippe-peninsula.
According to Hooker, n Scythothalia already had been gathered near
Deception Island by webster; Hooker again found it at 63° S, as
well as a Desmarestia, both floating in the sea. The
Desmarestia-species was referred by harvey and himself to D. media (Ag.) Grev.
More important was Hooker’s discovery of a littoral vegetation on
Cock-burn Island at 64° 14’ S., consisting of Iridæa radula, Adenocystis
Les-sonii and Prasiola crispa, the latter also growing high up on the island.
As is well known, 110 scientific researches were made in the south
polar regions for a long time after Ross’ expedition in 1839—43. From
the Gerlache-channel in the Graham-Land-region the Belgian expedition
brought back a collection of algae, of which Dr. E. de wlldeman has
given a preliminary report. New to the Antarctic Sea as to science
was a Curdiea, described under the name of C. Racovitzce by Hariot. 4
The expedition of Borchgrevinck 1898—1900 to Victoria Land also
made a small collection of algæ, which has given rise to a couple of
pamphlets.5
1 F. R. Kjellman: Ueber die Algenvegetation des Murmanschen Meeres und der
Westküste von Nowaja Semlja und Wajgatsch (Nova Acta R. Soc. Scient. L’ps. Ser.
III. Vol. extra ord. Upsala 1877).
–The Algæ of the Arctic Sea. (K. Sv. Vet. Ak. Handl. Bd 20. N:o 5.
Stockholm 1883).
2 C. Montacne: Plantés cellulaires in »Voyage au Pole Sud et dans 1’Océanie
—–.» Paris 1842—4;.
3 J. D. Hooker: The botany of the Antarctic Voyage. I. Flora Antarctica.
London 1847.
1 Expedition antarctique helge. — Note préliminaire sur les Algues rapportées par
M. E. Racovitza. (Bulletin de classe des sciences, Academie Rovale de Belgique.
Bruxelles 191x5.)
5 N. Wille: Antarktische Algen. Nyt Magasin f. Naturvidenskab. B. 40. H. 111.
Kristiania 1902. — F3. S. Barton: Algæ in »Report 011 the collections of natural
history made — — during the voyage of the Southern Cross». London 1902. Brit. Mus.
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