Platk 201.— LUZURIAGA MARGINATA. 



Family LILTACEiE.] [Genus LUZURIAGA, Ruiz & Pav. 



Luzuriaga marginata, Bcrdh. and Hook. f. Gen. Plant, iii, 768. 



Callixene parviflora, Hook. f. in Hook. Ic. Plant, t. 632 ; Handb. N.Z. Fl. 281. 



Enargea marginata, Banki and Sol. ex Gaerln. Fruct. i, 283, t. 59 ; Cheesem. Man. N.Z. FL. 704. 



According to Sir J. D. Hooker (Fl. Nov. Zel. i, 254), this charming little plant 

 was first discovered in New Zealand by either Forster or Menzies, although it is not 

 recorded in any of the early publications on the botany of the Dominion. Be that 

 as it may, it was not again seen until December, 1841, when it was gathered by 

 Mr. Colenso " at the foot of large trees in the beech forest, on the ascent of the 

 mountains from Lake Waikare." A few years later it was collected by Mr. Bidwill 

 on the Nelson mountains, and by Dr. Lyall in some locality in the south of the South 

 Island. Farther explorations have shown that it attains its northern limit on Moehau 

 Mountain (Cape Colville), from whence it stretches southwards, on the summits of 

 the higher peaks only, to the East Cape and the central volcanic plateau. From 

 thence it is of common occurrence in wooded upland districts as far south as Stewart 

 Island. Its altitudinal range is from sea-level to 3,500 ft. 



In the Manual I followed Baron Mueller in adopting the generic term Enargea 

 for the plant now figured and its immediate allies ; my reasons being that Enargea, 

 having been published in 1788 by Gaertner from Banks and Solander's MSS, was 

 clearly entitled to precedence over Callixene, wliich did not appear until the following 

 year, and over Luzuriaga, which was not published until 1802. But since then the 

 Vienna Conference of 1905 has definitely ruled that Luzuriaga is the name to be 

 employed. As it is clearly desirable, for the sake of uniformity of nomenclature, 

 that the decisions of the Conference should be loyally accepted, I have adopted that 

 name in this work. 



Luzuriaga contains three or possibly four species. Two of these are found in 

 Chile ; the third in Fuegia and New Zealand. It should be mentioned, however, 

 that the Fuegian plant, to which the name marginata properly belongs, differs from 

 that found in New Zealand in the much larger flowers, which are said to be nearly 

 double the size. It was mainly on account of this character that Hooker described 

 our plant as a distinct species, under the name of Callixene parviflora. In the 

 " Genera Plantarum," however, he gave his assent to the union of the two plants, 

 and it appears best to follow that course until a careful comparison can be made. 



Plate 201. Luzuriaga marginata, drawn from specimens collected on Dim Mountain, Nelson, 

 by Mr. F. G. Gibbs. Fig. 1, leaf, showing venation (x 2|) ; 2, bracts and pistil ( x 3) ; 3, flower (x 1^) ; 

 4, outer perianth-segment (x il) ; 5, inner perianth-segment (x 4i) ; 6 and 7, front and back view of 

 anthers ( x 3) ; 8, longitudinal section of ovary ( x 5) ; 9, vertical section of same ( x 5) ; 10, ovule 

 (enlarged) ; 11, section of fruit ( x 2) : 12, seed ( x 4) ; 13, section of seed ( x 4). 



