Page:The Botany of the Antarctic Voyage.djvu/41

Campbell's Islands.] islands beyond it. As far as I am aware, it had been previously gathered by Forster alone. In this group it attains a height of 30 feet, amongst other trees near the sea. Its trunks are sometimes 2–3 feet in diameter, covered with a smooth brown bark; the wood is white and close-grained. Branches much scarred, and clothed with a pale bark, very brittle. The distinct joint at the apex of the petiole indicates the truly compound nature of the leaves; they are nowhere described as ternate; a character which all young trees of this species exhibit. The whole plant has a faint but rank smell, like that of Ivy, which the copious lurid green but shining coriaceous leaves much resemble, both in hue and texture. The involucral leaves are very small and subulate.

XII. Fig. 1, unexpanded flower; fig. 2, flower more expanded; fig. 3, petal from the same; fig. 4 and fig. 5, immature stamens; fig. 6, germen after the petals have fallen away; fig. 7, immature fruit; fig. 8, vertical, and fig. 9, horizontal section of the same; fig. 10, ovule:—all magnified.  

1. polaris, Hombr. et Jacq.; polygama, herbacea, inermis, tota setis mollibus laxis obsita, foliis (maximis) longe petiolatis orbiculari-reniformibus basi profimde cordatis marginibus multilobatis lobis 3–5-dentatis dentibus subacutis, umbellis copiosis compositis partialibus multiradiatis globosis, involucris foliaceis, floribus densis, fructibus depresso-sph&aelig;ricis exsuccis suberosis atris nitidis.—A. polaris, ''Hombr. et Jacq. in Voy. au Pol Sud, Bot. Phaner. t. 2. sine descript.''

Lord Auckland's group and Campbell's Island; in the woods and on banks, generally near the sea, but often attaining an altitude of 600–700 feet, covering large tracts of ground with its bright and shining green foliage.

Radix; rhizoma cylindraceum, elongatum, 2–3-pedale, ad terr&aelig; superficiem procumbens, transversim striatum seu annulatum, solidum, ochraceum, subtus fibras copiosas breves emittens. Tota planta setis mollibus patentibus simplicibus subcarnosis vestita. Caules herbacei, validi, 2–4-pedales, e collo ipso valde ramosi, s&aelig;pius prostrati vel adscendentes, teretes, striati, fistulosi, diametro 1–1&frac12; unciam, pallide flavido-virides. Folia pleraque ad furcaturas ramorum, inferiora majora longius petiolata, horizontaliter explanata, 1–1&frac12; ped. lata, crassa, carnosa, orbiculari-reniformia, flabellatim nervosa atque reticulatim venosa, utrinque, precipue subtus et ob nervos prominentes setosos rugosa, l&aelig;te viridia, nitida. Petioli erecti, semiteretes, bipedales et ultra, basi membranaceo-vaginati; vagin&aelig; semi-amplexicaules, superne (ut in plantis gramineis) in ligulam maximam membranaceam obovato-cuneatam expans&aelig;; ligula superne truncata, bifida seu bipartita, laciniata, 2–3 unc. lata, pulcherrime radiatim et reticulatim venosa. Umbell&aelig; terminales et axillares, composit&aelig;, maxim&aelig;, diametro capitis humani, ter quaterque divis&aelig;. Umbell&aelig; partiales numeros&aelig;, globos&aelig;, multiflor&aelig;, diametro 1–2 unc. Involucra polyphylla: involucella oligophylla; ultima monophylla, gradatim minora, omnia longe petiolata, radiis umbell&aelig; multoties longiora, folia caulina juniora simulantia, sed pluries minora, angustiora, s&aelig;pe cuneata, altiusque lobata; umbellulorum ultimorum s&aelig;pius ad squamas ciliato-fimbriatas redacta. Pedicelli florum breves, clavati, –&frac12; unc. longi, sulcis tot quot ovarii exarati, florum masculorum graciliores. Flores copiosissimi, polygami, in capitulum globosum arcte congesti, pallide flavidi, cereacei, subtranslucentes, nitentes, disco purpureo. Calycis tubus cum ovario adnatus, 3–4-sulcatus, margine integerrimo. Petala 5, ante expansionem late ovata, obtusa, deltoideo-reniformia, subunguiculata, demum patentia, oblongo-obovata, carnosa, cellulosa, enervia, 1–1&frac12; lin. longa. Stamina 5; filamenta brevia subulata, pauiulum incurva; anther&aelig; majuscul&aelig;, didym&aelig; puqiure&aelig;: pollen elliptico-oblongum, utrinque obtusum, sub lente lineis 1–2 longitudinalibus opacis notatum, hyalinum, in cumulo stramineum. Stylopodia plana, depressa; styli nulli. Stamina ut in fl. masc., aut nulla. Stylopodia 3–4, subreniformia, elevata, sursum plana, luride purpurea, granulata, cavitatem in axin ovarii cingens. Styli 3–4, breves, subulati, lineares, subacuti, recurvi. Ovarium carnosum, 3–4-sulcatum, late turbinatum, 3–4-loculare, loculis circa axin cavum dispositis, 1-ovulatis; ovula ex apice loculi anguli interioris pendula, pyriformia, anatropa, funiculo brevissimo. Fructus subbaccatus, suberosus, aterrimus, depresso-globosus, recens 3 rarius 4-sulcatus, in caulibus emortuis fibrosis dealbatis anni pr&aelig;teriti persistens, disco vacuo