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4 9 3 FLO EA ANTAECTICA. [Fuegia, the
1. Cladothele Decaisnei, Hook. fil. et Harv. ; in. Lond. Journ. Hot. vol. iv. p. 2 9 3 . (Ta b. CXC )
H ab. Berkeley Somto Falkland Islands ; iu th e sea.
S a iix fibrosa? Hondes 4 -6 unc. altffi. cæspitosæ, filiformcs, seta porcina orassiores, cylindraceæ, flexuosæ
p US mmnsve ramosæ. ramificationc valde irregnlm-i. Mmiprimarii elongati, sæpe simpbces, ramubs longis simpli!
cibus sæpmsmre secnncbs curvatis v. incurvis vix attenuatis laxe donati. SM a n tia tenax. Color sordide v m L
Siccitate cmerascens :—chartæ laxe adhæret. ’
A r a y curious plant, certainly related to Coiium, especiaUy to 0. shnpliciuscul«n, by the struetoc of the
papiUæ that cover its surface, and from whieh we have derived the generic name. The axis is, however of very
different strncture from that of Codtum or of any other genus of Siphoneæ, and more closely resembles that of Polmi-
phoma In the specific name we wish to pay a deserved eompbment to onr friend M. Decaisne, who has thrown
mueh light on the affinities of the coralbuoid Algoe, especiaby those related to Siplwneoe. '
tion „ 5 “ 7 5 7 ; 1 7 longitudinal,tion of branch ; 5, cebular tissue of ditto ;—magnijied. and 4. vertical sec42.
BEYOPSIS,
1. B ryopsisplumorn, Grev. Alg. B r it. p. 187.
Yar. ft. Arhueoula, J . A g a ra i, Alg. Medit. p. 21. B. Arbuscula, Ag. Sp. Alg. p. 461.
H a b. Henmte Island, Cape Horn, and the Falkland Islan d s; abundant, both varieties.
sshhoroterr Jmr Isonmler oZf tIhe specimens Ttha n m others. ‘fr“ fr™’ " “ fr ‘fr"
2 . B eyopsis Roeoe, Ag. S g d . Alg. p. 1 7 9 . Borg in JDuperreg Fog. Bo t. p. 2 1 1 . t. 24. Jig. 1.
H a b . Hermite Island, Cape Horn, and th e Falkland Islands.
None of om specimens equal those figured by Boiy iu size, though they coincide in ab other respects with the
desciiptions pubbshed by that author and Agardh. Om opinion is, that the present plant is not distmct from the
B. plumoea, but is a large state of that very sportive speeies, depending probably on the temperature of the ocean it
inhabits for its development. Some other species of this highly Protean genus are equally difficult to define; and we
but expect that a copious smte of specimeus from different shores and depths wib considerably diminish it.
43. YAUCHEEIA, BC.
1. V aucheeia Billwg n ii, Ag. ; Grev. Alg. B r it. p. 191. t. 19. Conferva frigida, B illwgn, t. 19.
H a b . Cbristmas Harbour, Kerguelen’s L a n d ; on the ground amongst the Penguin Eookeries.
'The patches are very extensive and rather more glaucous than others collected near Edinburgh, with whieh the
f r Z r Z m - « » t o to agree. The capsules are not always globose, as figured by Mr.
GrevblJ’s 5 B r i l “ 1 '‘» « -" ta b y elongated and gibbous ; as shown in
trievüle s Mgæ B nt. (1. c.) where there is an exceUent figure of this species.
2. Y AVCsmiA cæspitosa, A g . ; Grev. Alg. B r it. -p. 194.
H a b . Berkeley Sound, Falkland Islan d s; on the moist borders of fresh-water lakes, and in pendent
masses from dripping rocks. pcuumii
These specimeus are dried very badly, so that we have not mueh confidence in our identification of the species.
Falklands, e tc ] F L O EA ANTAECTICA .
4 4 . BATEACHOSPEEMUM, Roth.
4 9 3
1 . B a t r a o h o s p e r m u m vagnm, Ag. ; Barveg, Manual, p. 119. Lgngh. Egdroph. B a n . t. 44.
H a b . Hermite Island, Cape H o rn ; in an alpine pool.
We cannot distinguish these from British specimens ; an alpine locality is common to both, the Engbsh plant
having been gathered on the summit of Siiow-don.
4 5 . D EA PA SN A LD IA , Borg.
1 D R A P A R X A L B iA i iM t f f a , Hook. fil. e tH a rv .; filis perpusilbs densissime cæspitosis gelatinosis parce
v age ramosis flexuosis, ramulis perpaucis brevibus apiee non setigeris simpbcibus, articulis eoloratis
viridibus diametro sub-duplo longioribus. Nobis in Lond. Journ. Bot. vol. iv. p. 296. (T a b. CXC. Eig. II .)
H a b. Berkeley Sound, Falkland Islands ; growing on th e roots of Crantzia lineata, in fresh-water.
Mia sub i uue. longa. radices raffioidasque siibmersas vestieiitia, diametro B. tenuis, cui verosimiliter species
affinis; differt præcipue fibs rigidioribus ramulisque non setigeris.
We have refen-ed tliis and the fobowing species to the genus Braparnaldia with little hesitation, from their
affinity with D. tana», Ag. Those natmalists, however, who know the gi-eat difiienlty of examining sueh things
in a di-ied state, wbl best understand the uncertainty wHch attaches to ab determinations of species belongmg to ese
tribes wlbdi are not from the fruit, or from characters of higher importance than the filamentous branches, evidently
referable to known forms.
P late CXC. Fig. II.- -1 , plant of the natural size, on roots of Crantzia lineata; 2 and 3, tbreads ; bigbly
2. D u a p a u n a ld i a sp. ?
H-ve. Hermite Island, Cape H o rn ; in stagnant water on th e lulls.
The filaments of this species are infinitely more slender than those of the last, but simbarly gelatinous aud of the
same structm-e.
46. CONFERVA, Ag.
1. Conferva clavata, Ag. ? Syst. Alg. p. 99.
Yai-. B a rw in ii; pro genere maxima, fibs 2 uncialibus eb a si gradatim incrassatis, articulis ad nodos coii-
strictis diametro paulo longioribus, inferioribus longioribus, supremis r une. latis. (Ta b. CXCII. Fig. I.)
H a b. Cape Tres Montes, on Sphacelaria fu n ic u la r is ; C. Barwin, Esq.
Of this variety we have seen but one specimen and refer it doubtfuby to the 0. clavata of the Cape of Good
Hope and New Zealand, to which it is certainly very closely abied.
P late CXCII. Mg. I.—Plants of 0. clavata, var. Barwinii, of the natural size, parasitical on Sphacelaria fmiicvlaris,
Mont.
2. C onferva Linuni, A g .; Harv, Man. B r it. Alg. p. 128.
H ab. Christmas Harboiu', Kerguelen’s L a n d ; in the sea, on rocks near Iiigli-water mark.
A widely distributed species, found from the Canary Islands. Mediten-anean and Black Sea, to the coasts of
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