Page:The Botany of the Antarctic Voyage.djvu/68

From Wikisource
Jump to navigation Jump to search
This page has been proofread, but needs to be validated.
46
FLORA ANTARCTICA.
[Auckland and

ciliata, pallide brunnea, nitida; terra tota sub arboribus foliis emortuis delapsis sparsa. Pedunculi solitarii v. fasciculati, rarius plantis junioribus ad apices ramulorum terminales, plerique e ramis brevissimis laterales, 1½—2 unc. longi, stricti, erecti, inclinati, v. rarius nutantes, 7-10 flores; rachi terete glabra suflexuosa articulata ad nodos dilatata cyathiformi. Pedicelli breves, 1—2 lin. longi, cum rachi articulati. Flores subconferti, rarius secundi, erecti, demum nutantes, basi 2—4-bracteati. Bracteæ inferiores subfoliaceæ, flore longiores, interdum elongati; superiores ovatæ, obtusæ, striatæ, corollam subæquantes, marginibus scariosis ciliatis, demum deciduæ. Calyx 5-phyllus, foliola tubo corollæ paulo breviora, bracteis omnino similia, sed minora, intimis angustioribus submembranaceis. Corolla tubuloso-campanulata, ⅓ unc. longa, albida, tubo terete sub ore paulo constricto, limbo 5-fido, segmentis patentibus basi imbricatis late ovatis obtusis marginibus subundulatis, medio incrassatis, apice inflexo, præfloratione incurvo. Stamina 5, filamentis linearibus breviusculis infra faucem corollæ insertis; antheris parvis oblongo-quadratis, apicibus exsertis. Pollen stramineum, hyalinum, e sphærulis 3—5 conglobatis compositum. Glandulæ hypogynæ 5, ovario breviores, loculis oppositæ, oblongo-cuneatæ, superne truncatæ, retusæ. Ovarium sessile, late obovatum, 5-lobum, 5-loculare, loculis dorso sulcatis; ovulis plurimis elongato-pyriformibus, funiculis brevibus columnæ centrali affixis pendulis. Stylus validus, erectus, tubo ⅓ brevior, apice truncatus, 3—4-crenatus. Capsula coriacea, foliolis 2—3 calycinis persistentibus inclusa, loculicide 5-valvis. Semina immatura angulata; testa reticulata laxa.

A most abundant plant, forming a great portion of the woods which skirt the shores of these islands. The true Dracophyllum longifolium has hitherto been known to botanists only through the specimens collected by the Forsters during Cook's second voyage, and to some of the few who possess portions of the valuable collection formed by Mr. Menzies in Dusky Bay. Mr. Forster made full descriptions of his specimens, which have been published by M. Richard, and as a few discrepancies occur in comparing our own specimens with his, I shall here allude to them, premising that they only refer to such characters as depend much on the different localities the plant may inhabit. That the above-described plant is specifically the same as that gathered both by Forster and Menzies, is evident on the comparison of my specimens with the original drawing of that author. Thus, the leaves are described as smooth and reflexed; they are only so in the younger and more luxuriant state of the trees in Lord Auckland's Islands; as they grow larger and more exposed to the violence of the climate they become strict, erect, rigid, coriaceous and pubescent above, all of which characters Mr. Menzies' specimens possess, except that they are also smooth. Again, the spikes are solitary in the young trees, but in the older most frequently from 2—5 together; I have however never seen them nearly a palm long, or indeed more than two inches; in the British Museum drawings they are about that length. The tube of the corolla is hardly if at all longer than the calyx, and not "duplo longior," and its segments can hardly be considered as acute. The present species is certainly most nearly allied to the D. squarrosum (vide in note, p. 48), but the leaves are broader and more rigid, and the corolla of quite a different shape.

Plate XXXI. & XXXII. Fig. 1, flower with bracteæ; fig. 2, corolla removed; fig. 3, the same laid open; fig. 4, a hypogynous scale; fig. 5, ovarium and hypogynous scales; fig. 6, transverse section of the ovarium; fig. 7, longitudinal section of one cell of do.; fig. 8, unripe seed removed from do.:—all magnified.

2. Dracophyllum scoparium, Hook. fil.; arbuscula, ramis ramulisque fasciculatis strictis fusco-castaneis, foliis e basi vaginante gradatim angustatis lineari-subulatis strictis rigidis antice planis v. subcanaliculatis marginibusque pubescentibus dorso semiteretibus apicibus triquetris, floribus spicatis, spicis plurimis brevibus erectis sub 4-floris, bracteis foliolisque calycinis corollam superantibus omnibus late ovatis acuminatis marginibus ciliatis exterioribus foliaceis intus sericeis, corolla late campanulata tubo brevi, segmentis brevissimis late ovatis obtusis. (Tab. XXXIII.)

Hab. Campbell's Island; near the sea, not common.

Arbor humilis. Caulis ascendens, 6-8 pedalis, basi compressus ramosus, cortice et ligno ut in D. longi-