It sen exteriore 
Falklands, etc.] CRYPTOGAMIA ANTARCTICA. 165 
Prate CLXXV. The absence of fructification precludes the necessity of dissections. 
3. DeLESSERIA platycarpa, Lamourx., in Ann. du Mus. vol. xx. p.124. Agardh, Sp. Alg. vol. i. p. 188. 
Turner, Hist. Fuc. t. 144. : 
Has. Falkland Islands; abundant in Berkeley Sound and Port William. 
Originally discovered at the Cape of Good Hope, where it is very abundant. More recently it has been 
gathered on the coast of California, whence its existence in the Falkland Islands might have been considered 
probable, even before its recent discovery in that part of the Southern Ocean. It is very plentiful on the long 
shelving beaches of the islands in question, but was not seen on the deeper and more rocky shores of Fuegia. 
4. DELESSBRIA crassinervia, Mont. Fl. Antarct. p. 184. 
Var. 8. costa angustiore. 
Has. Hermite Island, Cape Horn, and the Falkland Islands; both varieties abundant. Kerguelen’s 
Land; Christmas Harbour, var. a only. 
Were the var. 8. found upon the coast of Europe, it would be undoubtedly referred to D. hypoglossum, and it 
may well be considered very doubtful whether the D. crassinervia of the Southern Hemisphere be the representa- 
tive of its northern congener, into the likeness of which it varies; or whether, as is perhaps more probable, both 
are not varieties of the same species.” The true D. ruscifolia is a native of the Cape of Good Hope, of Tasmania, 
and, according to Gaudichaud, of the Falkland Islands also. 
5. DELESSERIA quercifolia, Bory in Duperrey Voy. Bot. p. 186. t. 18. f.1. 
Has. Hermite Island, Cape Horn, and the Falkland Islands; most abundant both on the outer coasts 
and in the harbours. 
A very handsome species, of which M. Bory gives a sufficiently characteristic but discoloured figure. The 
original colour of the plant is a rosy or vinous red. In every respect, except the position of the granules, which 
are here scattered over the surface of the frond, this is very nearly allied to D. sinuosa, Ag. 
6. Deuesserra Lyallii, Hook. fil. et Harv.; fronde lineari-oblonga obtusa costata penninervi argute 
serrato-dentata, nervis oppositis, margine incrassato folia consimilia petiolata emittente, dentibus subulatis 
simplicibus v. latere inferiore plerumque erosis, coccidiis frondis pagina sparsis, granulis in soros inter nervos 
laciniarum sitos dispositis. Nobis in Lond. Journ. Bot. vol.iv. p.252. (Tas. CLXX VI.) 
Has. Falkland Islands; on the outer coast only, probably washed ashore from the exposed rocks. 
Kerguelen’s Land; Christmas Harbour, washed up on the shores. 
Frons primaria exemplaribus Kerguelensibus 9 unc., Falklandicis 4—5 unc. longa, 1-14 unc. lata, in petiolum 
eylindraceum gradatim angustata, oblonga v. linearis, apice rotundata, costa valida percursa, venosa, venis oppositis, 
erecto-patentibus, margine argute serrato-dentata, sed non sinuata, incrassata, foliola seu frondes secundarias emit- 
tens?  Frondes secundarie primariis consimiles, sed plerumque minores, omnes evidenter petiolate, e margine incras- 
sato frondis primaries ortz, venis ejus opposite v. alterne. Color luride sanguineus. 
JD. sinuose habitu formaque frondis colore et substantia simillima: differt margine inerassato, dentato, non 
sinuato, et prsesertim frondibus secundariis evidenter petiolatis, nunquam e laciniis frondis primarie ortis. 
A very noble species, of which fine specimens were collected, thrown up on the stony shores of Kerguelen's 
Land and the outer coasts of the Falkland Islands; and which, as it was never seen attached, either in the shallow 
or deep bays of any of the coasts visited by the Expedition, finds, we conclude, a congenial home amongst the wild 
breakers that fringe many parts of these iron-bound coasts. ‘Specifically it is allied to the European D. sinuosa, 
