Page:The Botany of the Antarctic Voyage.djvu/347

Falklands, etc.] A very minute species, which at one time I was inclined to consider a seedling state of G. spicatum-, but the whole plant is perfectly glabrous, the stems very slender, the capitula aggregated at the apex of the stem and much smaller than those of G. spicatum.

I regret having found but few specimens of this very minute Gnaphalium, they were quite concealed amongst the stems of grasses and other herbs.

Plaie CXIII. B, Fig. 1, a flower of the disc ; jig. 2, a flower of the ray : — both magnified.

5. Gnaphalium luteo-album, Linn. Sp. PI. 1196. Engl. Bot. 1. 1002. G. inornatum, DC. Prodr. vol. vi. p. 225 ?

Hab. Chonos Archipelago ; C. Darwin, Esq.

This plant seems identical with Hartweg's n. 314 of Mexico, which Mr. Bentham has named G. inornatum, DC, but I can distinguish neither from European and N. American specimens of G. luteo-album, which is a very frequent inhabitant of the wanner and temperate parts of the globe.

10. MELALEMA, Hook.fil.

Capitulum discoideurn, niultiflorum, heterogamum ; flosculis marginalibus pauciseriatis, tenuissimis, foemineis, ore oblique truncato; centralibus herinaphroditis, 5-dentatis. Becepfaculum nudum, planum, papillosum. Involucrum subliemisplisericum ; squamis 2-3-serialibus, linearibus, superne atro-spliacelatis, exterioribus brevioribus. Sti/li rami apice truncati, pennicillati. Acltania breviter oblonga, striata, glaberrima. Pappus multiserialis, pilis vis scaberulis. — Herba Fuegiana ramosa foliosa dense caspitosa; ranus foliosis; foliis imbricatis spatliulatis suiter argenteo-lanatis ; capitulis terminaliiug soUtariis inter folia gumma sessiliius ; flosculis flav is.

1. Melalema liumifusa, Hook. fil. Baccbaris humifusa, Banks et Solander MSS. in Mug. Banks, cum icone.

Hab. Tierra del Fuego, Good Success Bay; Banks and Solander, C. Danvin, Egq.

Caulis prostrates, diametro pennas corviuae, basi descendente, fibras plurimas elongatas emittente, superne e lapsu foUoruin cicatricatus vaginisque foliorum obtectus, pluries divisus. Rami ascendentes v. erecti, 1-2-pollicares, dense foliosi. Folia 3-4 lin. longa, basi arete imbricata, patentia, spathulata, obtusa, subter tomento appresso argenteo-candida, super nisi versus apices glabrata, coriacea, subeneiTia. Capitula inter folia summa inconspicua, 3 lin. longa, late campanulata v. subhemispha3i'ica. Involucri squamae exteriores dorso arachnoideo-tomentosi, apicibus acuminatis atris. Flosculi plui-imi. Pappus setis flexuosis.

In the sphacelated apices of the involucral scales, this genus approaches Senecio, from which it essentially differs in the fomi of the florets of the circumference, which refers it to DeCandolle's second division Frect/utea of the Senecionea. Its habit and foliage are different from other Antarctic plants, though it resembles some alpine Composites of New Zealand.

11. CULCIT1UM. H.B.K.

1. Ctjlcitium Magellanicum, Homb. et Jacq. ; totum sericeo-tomentosum, foliis radicaHbus lineari-lanceolatis v. anguste linearibus elongatis acutis appresse sericeis super canaliculars marginibus revolutis basi longe vaginatis scariosis glaberrimis, scapo elongato monocepbalo bracteolato, bracteolis linearibus, capitulo solitario hemispbserico nutante v. inclinato, involucri squamis dense lanatis linearibus disco