294 . — ALGÆ ANTARCTICA. 
Radix fibrosa? | Frondes 4-6 unc. alte, cæspitosæ, filiformes, 
seta porcina crassiores, cylindraceæ, flexuosæ, plus minusve 
ramosæ, ramificatione valde irregulari. Rami primarii 
elongati, sæpe simplices, ramulis longis simplicibus sæpis- 
sime secundis curvatis v. incurvis vix attenuatis laxe 
donati. Substantia tenax. Color sordide viridis, siccitate 
cinerascens. Charte laxe adheret. 
A very curious plant, certainly related to Codium, especially 
to C. simpliciusculum, by the structure of the papille that 
cover the surface, and from which we have derived the 
generic name, but with an axis of very different structure 
from that of Codium or of any other siphoneous genus. It 
indeed more closely resembles that of Polysiphonia. In the 
specific name we wish to pay a deserved compliment to our 
friend M. Decaisne, who has thrown so much light on the 
affinities of the corallinoid Algae, related to Siphonee. 
64, Conferva Falklandica, Hook. fil. et Harv.; filis densis- 
sime cæspitosis flaccidis lete virentibus flexuosis intricate 
ramosissimis, ramis secundariis longissimis subsimplicibus 
- undulatis flexuosis, ramulis patentibus distantibus brevibus 
. secundis, articulis granuliferis diametro 3-5plo longio- 
ribus. 
Has. On muddy rocks, St. Salvador's Bay and Berkeley 
Sound, Falklands. 
Tufts 6-10 inches long, densely matted, composed of 
branching, interwoven, very flexuous slender filaments, 
bundled together like locks of hair. 'The most striking cha- 
racters of the species are, the wavy branches, and the great 
length and simplicity of the lesser branches, furnished more 
or less with short, patent, secund ramuli. 
65. Conferva incompta, Hook. fil. et Harv.; filis intricatis 
incomptis atro-viridibus opacis rigidis setaceis tortuosis 
vix ramosis, ramis nunc longe nudis, nunc ramulis brevibus 
pectinatis circinato-inflexis - ornatis, ramulis ultimis se- 
cundis v. alternis patentissimis obbtusis approximatis 
remotisve, articulis diametro 3-4plo longioribus. 
Has, St. Martin's Cove, Cape Horn. 
