From flabellatim expansa, 4-7 unc. lata, basi cuueata, pluries dichotoma, laciniis linearibus cimeatisve, -una latis et ultra, patentibus, apicibus obtusis emarginatis bifidisve. Substantia tenuis, membranacea, e cellulis superficiem versus minimis coloratis formata, interioribus rnagnis hyalinis. — Chartse non adhaeret.
Our specimens of tins plant are unfortunately barren, it resembles in outline the Phyllophora obtusa, but is of a very different consistence. Its nearest ally is the R. Pahnetta, to gigantic specimens of which it may be compared.
Plate LXXII. Fig. I. — 1. a specimen of the natural size; 2, lacinia of a specimen with narrower fronds, also of the natural size.
Dr. Montagne adds R. corallina, Grev., R. variegata (Halymenia, Bory), and R. bifida, Grev., as natives of Lord Auckland's group, but the specimens are imperfect and they may belong to some of the former.
21. HYPXEA, Lamour.
1. Hypxea multicomu, Mont.; "fronde filiformi tereti compressa inordinate corvmboso-rarnosissirnaj ramis ultimis subdistichis alternis aut subsecundis furcatis, ramnlis patenti-recurvis liamulosis, plui'ibus apice coivformi incrassatis sporoplioris." Mont. Voy.au Pole Siul,Bot. Crypt, p. 153. t. 9. f. 1. Rhodomela, Mont. Prodr. Pliyc. Antarct. p. 4.
Hab. Lord Auckland's group. (Admiral jyUrville.)
22. GRATELOUPIA, Agardlt.
1. Geateloupia ? Aucklandica, Mont.; "fronde cartilaginea filiformi tereti vage raniosissima, rands ramentisque confertis faseiculatisque subcompressis basi attenuatis saepius ex insigni frondis tuberculo singulis pluribusve enatis, fruetu .... ? " Mont. Prodr. Pltyc. Antarct. p. 7. Toy. an Pole Slid, Bot. Cryjjf. p. 15. t, 10. f. 1.
Hab. Lord Auckland's group. (Admiral & Urville.)
23. PHYLLOPHORA, Grev.
1. Phyllophora obtusa, Grev.; fronde corneo-rnembranacea stipitata basi longe cuneata enervi flabelli forrni subdieliotome laciniata, laciniis latissimis valde obtusis axillis acutis, coccidiis stipitatis sporophyllisque e frondis pagina ortis aggregatis. P. obtusaj Grev. in Wern. Trans.
Hab. Lord Auckland's group ; on shells, Src, in the sea.
Radix scutata, parva, parce fibrosa. Frondes aggregatae, 6-14 unc. longa?, basi cuneatae, in stipitem filiformem attenuatae, 1-1-g- unc. longa;, alterne dichotome fissae v. palmatas, simplices v. furcatse, valde obtusa?, axillis angustis acutis. Coccidia pedicellata, in soros elongatos laciniarum paginam oecupantes aggregata, globosa, pedieello filiformi v. foliaceo. Sporophylla aggregata, rotundata, sphserosporas minutas foventia. Substantia siccitate rigide membranacea v. cornea, subtransluceus. Color amasne roseus.
The Auckland's group specimens are small and barren, but agree entirely with those of the Cape of Good Hope, from which in part the preceding description has been prepared.
21. GIGARTINA, Lamour.
1. Gigartina divaricata, Hook. fil. et Harv.; caule cartilagineo-caruoso compresso Lineari subdieliotome diviso, ramis disticliis pinnatis subpinnatisve, ramulis pateutissimis linearibus subatteimatis.
Hab. Campbell's Island ; thrown up on the beach.
