170 CRYPTOGAMIA ANTARCTICA. [-Fuegia, the 
margine lacinulis brevissimis truncatis quadratis alternis ornato, axillis rotundatis :—Z. Lamberte forma 
similis, sed substantia differt. 
Var. 8. atro-sanguinea ; fronde substipitata atro-sanguinea palmato-fissa, laciniis obtusis erectis sub- 
dichotome v. alterne divisis margine proliferis, axillis rotundatis. Color luridior quam in var. a. 
Var. y. latissima ; fronde 10 unc. longa ad pedalem, laciniis parum divisis apice truncatis 1-4 unc. 
latis. Varietas a ceeteris valde diversa, sed certe nil nisi forma gigantea. 
Var. 8. lacerata ; inter varietates a et 8 media :—frons subsessilis divisa. 
Var. e. prolifera; fronde 14-2 unc. longa subdichotoma, laciniarum marginibus proliferis lacinulas 
numerosas angustissimas furcatas v. irregulariter ramulosas acutas emittentibus. 
Var. ¢. pulcherrima ; laciniis angustis decomposito-ramosis, pinnulis ultimis elongatis emarginatis. 
Has. Hermite Island, Cape Horn; var. a. Falkland Islands ; var. a. 8. (on the outer sea-coast) and ¢. 
(in Berkeley Sound) Kerguelen's Land ; vars. a. y. è. and e. All very abundant in Christmas Harbour. 
A more variable species can scarcely be imagined: so dissimilar are its forms that the more distinct of them 
were unhesitatingly pronounced to be different species, before the whole suites of specimens were collated. In 
Kerguelen's Land it is one of the most common of Alge; and the varieties, collected there and noted as belonging 
to the one species, are connected by various links with one another, and with the forms of Cape Horn, the Falkland 
Islands, and of the American coast. The dark coloured variety, 8. atro-sanguinea, is evidently sea-beaten, and 
though generally destitute of the marginal tooth-like lacinise, so conspicuous in a, there are specimens possessing 
them, which connect the two forms. The var. y. latissima is the best marked, more, perhaps, by its great size 
than by its presenting any positive characters: it was gathered along with a and 8, and referred when fresh to 
the same species. In the Falkland Islands the var. (. is conspicuous for having few, and but sparingly divided 
principal segments, about 4 inch wide, suddenly passing into narrow much-divided minor segments from 4-1 line 
broad. Though at first sight abundantly distinct from 8. or y., it is immediately connected with them both 
through var. a. 
We follow Endlicher in quoting Suhr’s figure of R. glaphyra as a synonym of this species: the representation 
is, however, anything but characteristic of an ۰ : 
7. Ruopymenta variolosa, Hook. fil. et Harv.; fronde carnoso-membranacea sanguinea in lacinias 
plures late lineares v. cuneatas elongatas furcatas dichotomasve ad basin fere divisa, laciniis basi angus- 
tatis erectis apice obtusis emarginatisve, coccidiis? superficialibus densissime conspersis sessilibus pedicella- 
tisve deciduis. Nobis i» Lond. Journ. Bot. vol. iv. p. 259. (Tas. CLXXX.) 
Has. Christmas Harbour; Kerguelen’s Land. 
Frons 2-3 v. 7-8 unc. longa, ad basin fere in lacinias fissa. Lacinie 4-1 unc. late, e basi angustata sensim 
latiores, furcatee, bis terve dichotome divisze, sinubus latis obtusis, margine integerrimo v. parce prolifero, super sub- 
terque corporibus granuliferis (coccidia?) sparse. Coccidia ? (in genere abnormalia) superficialia, subglobosa, basi 
angusta frondis affixa, cito decidua. 
Allied to the R. variegata, especially in form, but of a firmer texture and brighter colour; and very different in 
the nature of the fructification, which is easily detached, leaving only a small puncture on the surface of the lacinie : 
this constitutes the peculiar character of the species. In the structure and form of the frond there is some affinity 
with the Gracilaria polycarpa of the south of England and California; but the fruit of that plant is quite 
different. 
