Page:The Botany of the Antarctic Voyage.djvu/297

Falklands, etc.] A most distinct and pretty little species, certainly belonging to the group Euacana, though that, as now constituted, is very artificial. The present forms one of a small section in which the spike is truly elongated, the fruit compressed and covered with short glochidiate seta?, and which have a depressed stigma. To the same group belong A. latebrosa, Ait., A. elongata, Linn., A. lappacea, R. and P., and A. myriophylla, Lindl., with, amongst others, a new species from Monte Video.

Plate XCV. Fig. I, portion of peduncle, bracteola, and flower;^. 2, stigma;_/?y. 3, ripe fruit cut open, showing the seed ; fig. 4, embryo removed from the seed : — all magnified.

1. Aclena cuneata, Hook, et Am.; argenteo-sericea, caule brevi ? clecumbente, foliolis 4-7-jugis oblique obovato-cuneatis superne grosse inciso-dentatis utrinque sericeis suprenris basi supra petioluni deor-sum productis, pedunculo scapiforrni valido, floribus paucis majusculis reniotis v. subgloboso-spicatis, petalis dorso sericeis, staminibus 2 filamentis subelongatis, stigmate depresso, fructibus obovatis tetragonis mono-spermis v. latioribus compressis et dispermis undique spinis apice glochidiatis basi dilatatis armatis. R. cuneata, Hook, et Am. in Bot. Miscell. vol. iii. p. 307.

Hab. Strait of Magalhaens ; Cape Gregory ; Capt. King.

Cuiilis validus, 2-3-uncialis, ascendens. Folia 3-5 unc. longa, foliolis i- i uncialibus. Pedtmculi pedales, foliis paucis abbreviatis instructi. Bracteola lineares. Flores esemplaribus Chilensibus virides, Patagonicis luride fusco-purpurei.

Capt. King's specimens exhibit ripe fruit only, whilst those from Chili, gathered by Bridges and Cuming, are in flower. The fruit is often formed of two carpels and then is compressed ; the arming is different from that of the last species and consists of strong short spines, very broad at the base, sometimes arranged in rows, so as to give a pectinated appearance. Both in the form of the fruit and in the nature of the glochidiate spines, this is allied closely to A.piunatifida, R. and P., and A. trifida, R. and P. The A. cylindristacjiya, R. and P., is figured by its describers as sometimes bearing two carpels ; it is quite a distinct species, though nearly allied to a Carthagenian one, A. macrorhiza, mihi.

3. AcjENA (Ancistrum) multifield, Hook. fil. ; tota pilis sparsis villosiuscula, caule gracili ascendente simplici v. superne pluiies diviso, foliis linearibus, petiolis gracilibus, foliolis varie profunde sectis ad costam