' li:
i r t—i f
6 . N itophyllum Bonnemakoni, Grev .; AJg. B r it. p. 81.
h d n ia tum , fronde iiabelliformi profunde digitatim lobata v. subdicbotome pinnatifida, laciniis
mciso-dentatis. N . lacimatum, nobis in Lond. Journ. Bot. vol. iv. p. 256.
H ab . var. laoiniatum. Hermite Island, Cape Horu ; on rocks in deep water. Falkland Is lan d s ; not
common. ’
var- 5 5 7 “7 7 7 " “ " “ fr ™ N.Bonuenwisonisre cannot consider tins as more than a
vanety of that plant, whieh IS oeeasionally found in Britain nearly as mnch laciniated as the specimens before ns
arra Stipes, in the Jmtaret.c specimens. A-A inch long, terminating in the thickened enneate base of the frond
which IS 1 -6 mehes long, and deeply cleft into 6 -9 segments, either radiating from the centre in a digitate
manner, or springing hke pinnules fi-om a lengthened raehis. Colour, a pale brownish-red at tho base, becoming
rosy upwards. °
The N Bomwmaisoni in the Northem Hemisphere inhabits the Orkney Islands, the west coasts of Scotland
and Ireland, and the south-western shores of England.
1 9 . PLOCAMIUM,
1. P locamium coccineum, Lyngb. ; Haro. Phgc. B r it., t. 44. PI. Antarct. p. 1 86.
H ab. Hermite Island, Cape Horn, and th e Falkland Islan d s; very abundant.
The present is one of the most widely diffused of the Fhrideis, both in the Northern and Sonthern Hemisphere
In Em-ope it ranges from the shores of the Mediten-anean Sea to the North Cape. In Africa it oeciu-s at the Cape
of Good Hope, m North America on the coast of California, and it is abnndant. on the zUlantie shores of the
Umted States. I t inhabits both coasts of South America, but particularly the western ; Tasmama, New Zealand
and the Auckland Islands. The -Antarctic specimens are equally luxuriant with those of the Northern Hemisphere.’
2. P locamium Hookeri, Harv. ; fronde cartilaginea anguste bneari compressa plana distiche decomposite
ramosa, ramis pnmarus subdichotomis patentibus, secundai-iis alternis flexuosis foba ramulosque alterne
gerentibus, fobis plains aveiibs obbque obovato-lanceolatis obtusis basi angustatis cibtratis integerrimis v.
margme exteriore crenatis, ramulis bnearibus alterne et secunde pectiiiato-mnltifidis, sticbidbs brevibus
lateralibus dense fasciculatis digitatis laciniatis simpbcibus obtusis, coccidbs laterabbus sessibbus sparsis
Harv. tn Lond. Joum. Bo t. vol. iv. p. 257.
H ab. Kerguelen’s L a n d ; Christmas H arb o u r; tbrown upon the beach, rare.
Frena 8-10 uno. longa, vix Hn. diametro, plano-compressa, cai-tilaginea, nunc subdichotome nunc pinnatim
ramosa. Bnnu pnmam patentes; secundarii eircumscriptione Uneares. alterni, flexuosi. ramulos decomposites
fohaqne gerentes: folns A mic. longis, IA-3 U„. latis, anguste obovatis lanceolatisve, obtusis, aveniis, integerrimis
V. ranus secus marginem exteriorem crenatis. Color lurido roseus.
One ofthe most singular speeies of the genus, from the curious leaf-Uke appendages on tho secondary and
lesser branches. It is a very rare plant in Christmas Harbour, and cannot be confounded with any of its congeners.
Magellanicum, Hook. fil. et Harv. Thamnophora MageUanica, Montagne in Voy. au
PoU Sud, Bot. Crypt, p. 142. t. 8. f. 2. u , j j . au
H ab. Hermite Island, Cape H o rn ; the Falkland Islands, and Kerguelen’s L a n d ; veiy abnndant.
475
Of this plant we have very copious suites of specimens, gathered in the locabties above enumerated and varying
in lenvth from 8 or 3. to 1 or 8 inches; most of them are covered with coceidia, though none presents ns with a
singleliclbdimn; which is Hie more remarkable, because, in other speeies of tliis genus the latter description of fruit
is the most general.
Under the P. coccineim, iu the first portion of this work, the reasons for abandoning the genus Thammphora
are detailed; whether or not the present plant belongs to Plocamiwrn even, must remain uncertain lintU tbe natm-e
of the stichidia is known.
20. RHODYMENIA, Grev.
1. E hodymeniapalmata, Grev. ; Alg. B r it. p. 93. Fucus palmatus, Engl. Bot. t. 1306.
II.AB. Berkeley Sound, Falkland Islands ; abundant. Hermite Islands, Cape H o rn ; rare.
The Dulse, so commonly eaten on the coasts of Scotland, is not an unfrequent sea-weed on the shores of the
Falkland Islands, where it was quickly recogmzed by some ofthe north-country seamen of the ‘ Erebus’ and ‘ Terror.’
In Europe its distribution is from tbe Canary Islands and MediteiTanean Sea, to the coasts of Norway and Ireland.
Dr. GrcvUle mentions that it is a native of the shores of Brazil.
2. E hodymenia sobolifera, Grev. ; Alg. Brit. p. 95. Fucus sobobferas. Prig. Bo t. t. 2133.
H ab. Falkland Islands ; in Berkeley Sound, and on th e exposed outer sea-coast ; abundant.
Apparently identical with a sea-weed which inhabits the western shores of Ireland, Scotland, and the Orkney
Isles, and 1ms also been gathered ou the west coasts of France. I t is scarcely more than a variety of R. pahnaU,
whether occm-i-ing in tho north or south temperate oceans.
3. E h o d ym e n ia corallina, Bory ; in Buperrey Py . Bot. Crypt, p. 1 7 5 .1 .16.
ILvb. Christmas Harbour, Kerguelen’s Land ; rare.
We hove i-efen-ed our single specimen, without frnit, to this speeies ; with which it appeai-s entirely to agree.
Tlie species is not uncommon along the Paeific shores of South America, between the latitude of Concepcion and the
Equator.
4. UiiODYJiiiMiA PahneUa, Grev. ; Alg. B r it. p. 88. t. 12.
H ab . Straits of Magalhaens, iP Hrrtffo ; Falkland Islands, Gaudichaud.
Of tills species we have seen no southern examples.
5. E h o d ym e n ia /« S rla fo , Grev. ; Synops. p. 4 8 . Sphærococcus fimbriatus, Agardh, Spec. Alg. vol. i.
p. 2 9 9 .
IIab . Palklaud Islands, Gaudichaud.
This again is a plant which we do not recognize amongst the coUections brought from the Southern Hemisphere.
0. E h o d y m e n i a «Weyate, Montagne; inH O rb ig n y Hoy. p. 22. and 116 i® OSæ Halymenia variegata,
Bory in Buperrey Toy. Bot. Orypt. p. 1 7 9 .1 .14. R. Hookeri, Harv. in Lond. Journ. o f Bot. vol. iv. p. 258.
E. glapliyra, Suhr, in Plora, 1839, vol. i. p. 69. t. 2. f. 43.
Yar. a.flabellata ; fronde stipitata rosea v. sanguínea flabeUata fere ad basin partita, lacinüs manifesto
flabelliformibus basi cuneatis i-epetite di-tri- vel palmatim dichotomis, laciniis lineanbus I - i unc. latis.