FLO EA ANTAECTICA, [Fuegia, the
1 question w h e t h e r / . « b e more than a membranous form e î I . Radula : former always preferrino- the
quieter Imrboiirs, where Its frouds are sometimes as thin as those of a quite imfltted to withstand the
tough seas of the outer coasts, which wash the almost uninjured fronds of the I. Radula ashore in broad sheets
as large and as red as an ordinary pocket-handkerchief. ’
Though sometimes almost equally thin, the substance of the / is never so membranous as that of a
euena Tlie colonr, though not so bright a rose, or so delicate when the plant is di-icd, is when seen b, the
iving state much more varied and more beautiful. The textme is such that the slightest motion of the water
causes the frond to nndnlate tlmonghont from the base upwards without falling into folds : each portion of the
ilfaee, when presented at a eertarn angle to the eye. reflecting back the most brilliant metallie tints of azure steel-
lue. pmk, aud purple. A more beautiful object in the water is not to be found in the whole order of r t ^ 5 ! i
h s when seen fo n t a boat m calm weather and snnslrine; though it is seldom that such opportunities occur in
the latitudes it inhabits I have not been able to detect any striæ on the surface of tbe frond, which is formed of
cell:, so densely iiacted tliat they coalesce mto a homogeneous cartilaginous tissue.
f l ¥ ‘"" 'é 1 “ P'-onouneiiig this as identical speeifically with the /. cordata of the Banks of New
foundland and the Cape of Good Hope ; of wliieh speeies there is an excellent figure in the ' Historia Fneornm ’
comeidmg wfth that of Bory in Dnpen-ey’s Voyage. The descriptions, both of Aganll. and Tm-ner, partie,dari;
mention the mitescraioe of then- specimens. The only diiferential chai-aeters noted by Boiy, who jn s ly indicates
the d«'"“ CÎ I ,means with I. cordata, are the slight discrepancy in the blnntness of the apices of the
fronds and depth of the lobes at the cordate base. We are, however, weU assm-ed that sneh characters are all too
sbght; for we could not either at the Cape of Good Hope or the Falkland Islands, distinguish between the forms of
his Ir,daa with a cordate and those with a enneate base to the frond. We are, however, far from asserting that
there may not be from the two last-named locahties two species here confounded (one of whieh, the / mkam of
Boiy, IS the same with the R. cordatas of Tm-ner), though we strongly inchne to the opposite opinion.
3 1 . PHYLLOPHORA, Grev.
1. PHYLLOPHORA Hook, fil. et Harv.; fronde stipitata basi ramosa lato-cnneata proliféra
integra emarginata v. bdoba e margine disco v. apice frondes consimiles emittente.
rare
^ Frondes omnes stipitate. Stipes compressus interdnm subplanus, ima basi plerumque angustissima, sensim in
1 T Z 5 “ " T I T fr“« Pltó^sva divisus. Frondes primariæ
2 une. longæ, 1- 1 ^ la te ; apice latiore late rotundato, emorginato, retuso v, büobo ; segmentis rotundatis rarius
erosis ; seeundanæ prnnarns omnmo similes sed colore paUidiores et basi simphees, sæpe frondes tertiarias emittentes
— e - e r e a rtü a g in e a ,s n b e o rn e . basi opaca!
Certainly distinct from P . oitusa, tbe only one of the genns hitherto deseribed as a native of the sonthern
emperate hemrsphere, hut imrhaps not eqnaüy so from P . Rrodiai. Stfll our specimens are very different from the
oidmaiy British form of that plant, m the mnch shorter stipes, and larger broader frond, whieh is much less lobed
and the lobes are not so narrow or elongated, or separated by so deep a sinus.
2. PiiYLLOPHORA oUiisa, Grev. Fl. Antarct. P t. 1, p. 187.
H ab. Hermite Island, Cape Horn ; dredged up from flve fatbom water, very rare.
The specimens of this species are sufficiently charaeteristie, though few in number. It is also a native of the
Cape of Good Hope and Lord Auckland s Group.
FaUdands, etc?] PLO RA ANTARCT ICA. 487
32. N OTHO G EN IA, Mont.
1 . N o th o g e nia variolosa, Mont. Fl, Antarct. P t. 1 . p . 1 8 8 .
I I ab. Henmte Island, Cape H o rn ; th e Falkland Is lan d s ; and Cliristmas Harbour, Kerguelen’s L a n d ;
on rocks, very abundant.
An exceedingly variable plant in size and in the breadth of its fronds, simulatmg in tbe Mgh southern latitudes
the Chondrus ciispus, as far as locality and abundance are concerned. The soutliern species representing our Chondrus
crispus is the C. tuberculatus in Lord Auckland’s Group, (where the Nothogenia also abounds,) and at the Cape of
Good Hope the C. dilatatus.
33. D UMONT IA, Lamx.
1 . D umontia/ / / om te , Grev. Fl. Antarct. P t. 1 . p. 1 8 9 .
H a b . Berkeley Sound, Falkland Is lan d s ; rare.
Apparently identical with the Eui-opean plant, wMch ranges from the Mediterranean to the British coasts.
34. G IGARTINA, Lamx.
1. G ig a r t in a p lica ta , Grev. Alg. B r it. p. 1 5 . Eucus plicatus, Fngl. B o t. t. 1 0 8 9 .
H a b . Cape Pembroke, Ealkland Islan d s; Christmas Harbour, Kerguelen’s L a n d ; abundant.
These examples so entfrely accord with others of British growth, that it is unnecessary to separate them spe-
fically. No specimens considered by any systematic botanist to belong to this Gigartina have been found between
the latitudes of the south of Em-ope and Kerguelen’s Land, except (according to Montague) at Callao ; yet the
genns, under one or other of its Protean aspects, aboimds throughout all tropical and temperate seas.
35. PTILOTA, Ag.
1. P tilota llai-vegi. Hook, fil.; canle compresso cartilagineo inarticulato auguste lineari furcato inor-
dinateve ramosissimo, ramis distichis pinnatim decomposito-ramosis majoribus minoribusque pectinatim pinnu-
latis costa articulata percursis, piunuHs creberrimis simplicibus articulatis monosiphoniis abbreviatis subulatis
oppositis, pinnularum articulis quadratis, favellis in ramulos terminalibus ramellis piimatis involucratis,
tetrasporis ad apices pinnularum aggregatis nudis breve pedicellatis. Hook. fil. in Lond. Joicrn. Bot.
vol. iv. p. 271. (Tab. CLX X XV II.)
Var. pinnuHs subdistantibus.
H a b . Hermite Island, Cape Horn, and on the outer coasts of the Falkland Islan d s; abundant.
Species pulcherrima, prima visu P. plumosce referenda, sed distinctissima. Frons 8 unc. ad pedalem, e ramis
patulis cjusdem latitudinis. Stipes gi*acilis, \ lin. diametro, et per totam frondem oequilatus, irregulariter furcatim
V. dichotome v. siib-pinnatim ramosissimus. Rajui minores majoresque (juniores præcipue) ramulis creberrimis articulatis
1 lin. longis pulcherrime pectinati. Ranmli simplices, serie unica cellularum quadratarum endochromate
roseo rcpletai-um constantes, ramis Callithainnio subsimiles.
This lovely plant is the Cape Horn and Falkland Island representative of the Boreal and i^rctic R. sericea
Harv. (P. elegans, Kutz., sericeus, Gmel.) and o fth e Auckland Island P. formosissima, (t. LXXVII.) From
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