Page:The Botany of the Antarctic Voyage.djvu/59

Campbell's Islands.] both the present and the last species. Richard (Flora Nov&aelig; Zelandi&aelig;, p. 249) described it from other and less perfect individuals, aided by Forster's MS. in the Museum of the Jardin des Plantes at Paris. He however does not notice its affinity to Celmisia, and considers the C. coriacea as probably a variety of it, though Forster's figures essentially differ in general appearance, and other characters are found in the parts of the inflorescence of no less importance, the ach&aelig;mia described by Richard being "silky and stipitate" (attenuated?) at the base. Mr. Cunningham, in his 'Prodr. Flor. Nov. Zeland.,' first noticed the probable relation existing between these last two species and Celmisia (Cass.). The scales of the involucre in all the New Zealand species, except C. vernicosa, are narrow and almost subulate, becoming recurved and finally squarrose in the older capitula; this is, however, a variable character.

I may here mention another little-known New Zealand plant, originally discovered by Forster, and called by him Arnica oporina (Forst. Prodr. n. 299); it is nearly allied both to these and the former genus Pleuro-phyllum. I have carefully examined specimens from Dusky Bay, gathered by Mr. Menzies, and others from Chatham Island, received from Dr. Dieffenbach. The ach&aelig;nia are ribbed and hairy, the pappus rigid, rather scanty, pale-coloured, scabrous, and of very unequal set&aelig;. The tubes of the corollas in the ray are glabrons, in those of the disc slightly hairy. In both flowers the arms of the style precisely resemble those of Celmisia and are very long, those of the disc with short papillose extremities. A comparison of this plant with the genus Chiliotrichum of Cassini, (published in DeCandolle's Prodromus, vol. vi. p. 216, and Hooker's Icones Plantarum, vol. v. t. 485) does not enable me to detect any generic distinction: the arms of the style in the flowers of the ray are indeed rather longer in the latter and slightly attenuated upwards, and the ach&aelig;nia are glandular and not hairy. Both approach very closely the genus Eurybia, Cass., or Olearia, M&oelig;nch.

Fig. 1, involucre cut open, showing the hemispherical receptacle with a flower of the disc and of the ray; fig. 2, a flower of the ray; fig. 3, set&aelig; of the pappus; fig. 4, tube of the ligulate flower; fig. 5, style from do.; fig. 6, flower of the disc; fig. 7, corolla from do.; fig. 8, anther from the same; fig. 9, styles from the same:—all magnified.

 

Dubii generis.

Amongst the plants collected in Lord Auckland's group, are two apparently belonging to the natural order Composit&aelig;, but which, in the absence of flower or fruit, I am unable to place under any genus. One of these may belong to Gnaphalium, but is quite different from any New Zealand or other species which has come under my notice. The only specimen of it which I possess was gathered by Mr. Lyall, and consists of apparently a few radical leaves, or probably of a young plant whose stems are not yet produced upwards.

1. ? radice lignoso, caule breviusculo 2-3 unc.longo adscendente e basi ramoso folioso, foliis confertis patulis obovato-lanceolatis subspathulatis obtusis integerrimis planis medio obscure uninerviis utrinque lana laxa molli albida vestitis &frac34;–1 unc. longis 4–5 lin. latis.

Lord Auckland's group; on the sea-beach, D. Lyall, Esq.

The woolly substance which entirely clothes the leaves and stem of this plant is formed of simple, terete, transparent, matted filaments, similar to that of Gnaphalium luteo-album, L., to some states of which this bears a good deal of resemblance. It may with equal probability be referred to a species of Heliehrysnm, and except that the apices of the leaves are not apiculate or mucronate, it has much the appearance of young plants of H. apiculatum, Lab.

The other plant, if I am right in referring it, as I do with little hesitation, to Composit&aelig;, forms one of the most handsome shrubs or low trees belonging to that natural order. It was also detected by Mr. Lyall, from whose specimens I shall here give a short description:—

Subarborea, ramis ultimis lignosis teretibus striatis v. canaliculars vaiidis, &frac12; unc. diametro.