258 ALGÆ ANTARCTICA. 
less oblique. The axilsare all rounded. The stichidia dense- 
ly tufted and laterally disposed on the ultimate ramuli. Colour 
a dark and rather dull red. 
21. Rhodomenia Hookeri, Harv.; fronde stipitata carnoso- 
membranacea sanguinea v. atro-sanguineà flabelliformi 
profunde fisså, laciniis lineari-cuneatis di-trichotome-mul- 
tifidis erecto-patentibus flabellatis, laciniis eroso-pinnati- 
fidis pinnulis brevissimis quadratis apicibus truncato- 
obtusis fastigiatis, axillis rotundatis, coccidiis spheericis 
ad apices (tunc acutos) congregatis, soris granulorum laxis 
in apicibus roseis dilatatis immersis. 
Has. Kerguelen's Land, the Falklands and Cape Horn ; 
abundant.—A most protean species, of which the following 
varieties were collected : 
a, flabellata ; fronde stipitata rosea v. sanguinea flabel- 
lata, fere ad basin partita, laciniis distincte flabel- 
liformibus, basi cuneatis repetite di-tri-vel palmatim- 
dichotomis, laciniis linearibus 3-} unciam latis, mar- 
gine lacinulis brevissimis truncatis quadratis alternis 
ornato, axillis rotundatis. : 
Some specimens of this variety bear a striking likeness 
to R. Lamberti, but are of a different substance. 
B, atrosanguinea ; fronde substipitata atrosanguinea pal- 
matifissa, laciniis lineari-cuneatis erectis subdichotomè 
vel alterne divisis margine proliferis, apice obtusis, 
axillis rotundatis. 
At the Falklands, near Cape Pembroke. 
Of a much darker colour than var. a, and nearly destitute 
of marginal tooth-like laciniæ. But the specimens have à 
sea beaten appearance, and there are some evidently con- 
necting the two forms, although the extremes are so different 
that we had, at first, supposed them to belong to different 
species. 
y, latissima; fronde 10-19 uncias longa, laciniis parum 
divisis 1-4. uncias latis (!), apicibus truncatis. | 
This so little resembles the other states that had it not 
