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FLORA ANTARCTICzY. [Fuegia, the
iVoud ; 2, portion of ditto showing the two modes of escape of the spores, either free or contained in the orirénal
cells :-v e ry h.gldy imgnified. (The quaternary cRvision of the spores was not seen in this disseetion.)
5.
L AMIN A RI Aj Lamowx,
1. LAMiN.utiA/iacia, Ag., Sgst. p. 273. Hani. Phgc. B r it. t. 45.
H ab. Hermite Island, Cape Horn, and the Falkland Islan d s; not common.
These speMens do not appear to differ from British ones in any particular. The L. fascia is a northern but
L. debdis, it also inhabits the Mediterranean Sea.
6. CAPEAj Moiitagn.
1. Capea bUandnata, Montagu. » Flor. Canar. Grgpt. p. 140. t. 7. Laminaria biruncinata. Born in
B a p en eg Tog. Bo t. Crgpt. p. 101. 1 .10. L. radiata, ft. exasperata. Turner H ist. P m . vol. u. p. 16.
H ab. Hermite Island, Cape H o rn ; J .F . Bavis, Fsq.
H o l l Í a ^ Z l r : : . " *•'“ ^ew
lattei IS Its Cape of Good Hope representative, and is reported to be a native ofthe Falklands nrobablv
enoiieously,^ as is the station assigned to the Macrocystis of the Canaiy Islands. On the other hand there i
'H e L T p h ! C'q.-,whose principal paraRel is certainly in the'sontheni
The frnetifieation of m io n ia is scarcely known; we have seen what appear to be young sori in the form of
r ;V 5 t:5 :r ‘'7 ?'■ '“y-follhieLedandLlel paiaUel tube frdl of granules, analogous to what such fructification as Montagne’s beautiful analysis of Canea reore
seuts woidd be m an immature state, but we are extremely doubtful of onr analysis.
Í, Ic. Alg. p. 259. 1 .16.
7. D E SM A R E S T IA , Lamourx.
1. D e s ili e e s ti a media, Grev., Sgnops. p. 40. Sporochnus medius, .
D. anceps, Montagne in Yog. au Pole Sud, Bot. Crgpt. p. 51 ?
H a b . Cockburn Island, (lat. 64° 12' S., long. 57° W .); floating in the sea, abundant.
One of the most Antarctic of plants and probably common in many latitudes ; for, under other names it has been
noticed as a native of Pern, of various parts of the Pacific Ocean, and even north to the Ai-etie eirelT It L s L Z
hat a plant of thus small genus, and from which the present is perhaps not specificaUy distinct, the D a J e a la
should be among the highest Aratic Algce. inhabiting Spitsbergen in 80° N. lat. Montague's D. anceps confessed^
- . - e d L e a n y t h 5 — l
2. D esm aee stlv viridis, Lamourx.—Flor. Antarct. P t. 1. p. 178,
Var. ft. distans ; ramis remotioribus.
K e rg feM ’s“ " ' " “ ' ' ^ery abundant. . Var.ft,
Falklands, etc?) FLO RA ANTARCT ICA.
The range of B . viridis in the Northern Hemisphere is not extensive, and almost confined to the shores of
England and of the German Ocean. I t is, however, found at Unalaschka, according to Postel and Rupprecht.
3. D e sm ah e s tia /¿ /w /® /® , Lamourx. Gi’ev. Alg. B r it. ]). 8 7 . t. Ò. er Hist. Fuc. t. 99.
H a b . Hermite Island, Cape Horn ; rare.
Oui- specimens in no way differ from European ones. I t is probably a common Antarctic species, for we have
received it from the east coast of Patagonia.
4 . D esmaiiestia lierbacea, Lamourx. Montagne in Voy. au Foie Sud, Bo t. Orypt. p. 50.
H ab . P o rt Pamine, Strait of Magalhaens ; M . Homhron.
We have seen no Antarctic specimens of this plant, which is also a native of the Cape of Good Hope, Concepcion
on the west coast of South America, and of North-west America.
5. D esmarestia chordalis. Hook. fil. et Harv.; fronde coriaceo-cartilaginea compressa anguste lineari
tri-quadripinnata, pimiis pinnulisque longissimis oppositis distantibus apice longe nudis, pinnulis sæpe
alternis elongatis inermibns cliordiformibns. Nobis in Lond. .Tourn. Bo t. vol. iv. p. 249.
H ab. Christmas Harbour, Kerguelen’s Land ; very abundant, in two to five fathom water.
Alga socialis, rupicola, cæspitem gramineam submarinam late extensam effieiens. Frondes e radice anguste
scutata valde elongatæ, 3-5-pedales, Stipes l-l-J- lin. diametro. Pinna paulo angustiores, pinnulis \ Hn. latis.
A very noble species, recognizable at once by the long whip-like naked apices of its pinnæ. In the great
abundance of this Alga consists one of the pecidiailties in the submarine vegetation of Kerguelen’s Land.
6. D esmarestia Rossii, Hook. fil. et Harv.; fronde coriaceo-cartilaginea compressa lineari bi-tripinnata
circumscriptione anguste lanceolata, phuiis pinuuhsque ommbus oppositis basi apiceque attenuatis acutis
erectis v. ultimis appressis margine integerrimis. Nobis in Lond. .Journ. Bot. vol. iv. p. 249. (Tab. C LX X II.,
CLX X III.)
IL ib . Staten Land, A . Menzies, Fsq. Hermite Island, Cape Horn, and th e Falkland Islan d s; very
abundant.
Frondes 4-8 ped. longæ, anguste lanceolatæ, mmc apices versus dilatatæ, inferire bipinnatæ, supra medium tri-
pinnatm, valde coriaceæ. Caules stricti, 2-3 lin. lati, Pinnie 1 lin. latæ piminnlæque oppositæ, suberectæ, axillis acutis,
basi apiceque attenuatæ.
Even a nobler species than the last, from its great size and opposite ramification. In general form it
resembles the D. Ugulata, but is of a totally different consistence, being much more rigid, coarser, and thicker.
The fronds arc sometimes curiously dilated towards the apex, when they ai-e generally linear below tbe expanded
portion. This appearance ia produced by the upper phmæ elongating and becoming thrice pinnated ; they are
then also of a paler coloni- than the lo-n-cr ones.
P late CLXXII., CLXXIII. Fig. 1, transverse section of stem ; f g . 2. horizontal, and yfy. 3, vertical slice of
tlic same ;—niagnifed.
S. DICTYOSIPHON, Grev.
1. D ictyosiphon / « « ‘iciifofM, Hook. fil. et Harv., in F l. Antarct. P t. 1. p. 178. t. 49, f. 1.
H ab. Berkeley Sound, Falkland Islands, and Christmas Harbour, Kerguelen’s Land.
We have before noticed this plant, which is the Sonthern representative of the Northem and Arctic D .fa n k u -
laceus.
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