Page:The Botany of the Antarctic Voyage.djvu/107

Campbell's Islands.] cellati ; pedicelli bracteolati ; bracteoke parvae, late ovata?, longe acuminate, pilosas, concavse, membranaceo-scariosse, finibriato-lacerse, laciniis longe piliferis, ultra florem productis. PeriantMi ibliola 3 exteriora lanceolata, longe acu- minata, versus apices leniter recurva, concava, superne earinata, coriacea, atro-fusca; interiora breviora, planiuscula, oblongo-lanceolata, acuminata, medio coriacea, rufo-brunnea, marginibus late scariosis, pallidioribus. Stamina (5, perianthio i breviora ; filamenta elongata, linearia, compressa ; authene breviusculse, oblongse, ad apices brevissiine unguicidate. Pollen straminemn, globosum, immatururn trigonum, hyalimun, nucleo opaco, intus tripartito. Ovarium elliptico-ovatum, trigonum, utrinque angustatmn, superne in styliun attenuatum, uniloculare, triovulatum; stylus ovario brevior, erectus, gracilis, in stigmata 3 inclusa filiformia desinens. Ovida 3, e basi loculi erecta, anatropa ; funiculis brevibus. Capsula perianthio inclusa et subaequilonga, membranacea, obovata, acuta, turgida, trigona, angulis obtusis, uuilocularis, trisperma, trivalvis; valvar late obovato-oblongoe, acute, concavfe, dorso canaliculate, intus medio carinate. Semina 3, parva, ovoidea, fundo loculi funiculis brevibus adnexa, valvis opposita; membrana exterior laxa, tenuis, hyalina, albida, latere unico ad raphem incrassata, lacera, demum decidua, reHquiis circa chalazam tantum et funievdum persist entibus ; interior albiunini appressa, brunnea, striata v. reticidata, ad chalazam latam apicemque pendulum atra. Albumen camosum. Embryo parvus, ovato-oblongus, teres, funiculo proximus albumine iuclusus. This appears to be a very distinct species, most nearly allied to the L. Alopecunis, Desv., of Tierra del Fuego and the Falkland Islands, a plant which Mr. Kunth considers as a form of L. Peruviana, Desv., and which much resembles the present in size, general appearance, and in all particulars but the segments of the perianth, which are in L. Alopecurus lacerated and fimbriated at the scarious margins, like the braeteola>. It also resembles some states of L. campestris, D. C, as that plant appears in Tasmania, but the leaflets of the perianth are nearly scarious through- out in that species, more plane and not so thick and coriaceous ; the outer ones are also in this very convex and distinctly carinated above the middle.

Plate XL VIII. Fig. 1, flowers ; jig. 2, outer leaflet of the perianth ; jig. 3, inner do. ; fig. 4, a stamen ; fig. 5, immature pollen ; jig. 6, the same more advanced ; fig. 1, ovarium ; fig. 8, longitudinal section of the same ; fig. 9, a ripe capside ; fig. 10, seed ; jig. 11, vertical section of the same : — all magnified.

1. GAIMARDIA, Gaud.

1. Gaimakdia ciliata, Hook, fil.j dense raespitosa, foliis erectis undique arete imbricatis lmeari-subulatis obtusis teretiusculis compressis fistulosis basi vagioantibus dorso versus medium marginibusque vaginarum ciliatis, pedunculis fruetiferis folio longioribus.

Hab. Lord Auckland's group ; exposed places on tlie liills, very abundant, forming large green patches.

Radix fibrosa ; fibris simplicibus, tortuosis, spongiosis, albidis. Caules erecti, ramosi, 2-3 una longi, dense fastigiatim compacti, fobosi. Folia plurima, erecta, caidi appressa, unc. longa, lineari-subulata, gradatim attenuata, apicibus obtusis, teretia, lateraliter compressa, intus fistulosa, dorso ad medium ciliata, basi longe vaginantia, hete viridia, nitida, vctustiora flavo-bnumea ; vagina folio adnata;, scarioso-membranacese, hyalina?, superne in ligidam breveni, apice rotundatam, integram producte, marginibus dorsoque ciliatis, pOis elongatis, albidis, articulatis. Pedunculitis anni praeteriti elongatus, validus, erectus, folio longior. — Csetera mihi omnino ignota.

A close examination of this species with the Gaimardia australu (Gaudichaud in Freyc. Voy. Rot. p. 418. t. 30). has satisfied me that they are, as far as I can judge without flowers or fruit, congeneric. The habit of the two plants is entirely the same, and both form extended plane hard green tufts on the bare boggy surface of the hills in their respective islands, often of two or three yards across. The present is rather the smaller species, with much smaller leaves, not flattened on the upper surface, ciliated at the back about the middle, as also on the sides and margins of the sheaths, which are produced upwards into a shorter ligula than in G. australu.