20 CARL SKOTTSBERG, A BOTANICAL SURVEV OF THE FALKLAND ISLANDS. 



many of these colonies came from one inclividual. During my excursions it hap- 

 pened, that one day cT, another ? was inet with and generally very few specimens 

 of the opposite sexes. The flowers were described and figured by me in Feurl. Blii- 

 ten. I add the following observations on the colonr: c? outer side of perianth and 

 filaments greenish white, inner side lighter, anthers påle yellow, ovary påle green; 

 ?, perianth cream-coloured, ovary grass green with påle stigmse. — 



The Astelia-Sissocisbtion ist a common form of peat-bog in the Falklands, occurr- 

 ing in the valleys or on the hills, even in alpine situations (just below the top of 

 Mount Adam!) — W. Patagonia, Fuegia. 



Eil.arge.a Banks et Sol. 



In the International rules for botanical nomenclature (2'^ Ed. Jena 1912) Luzii- 

 riaga (1802) is kept as nomen conservandum , and Enargea (1788), and Callixene 

 (1789) are rejected, in spite of their being older. This would be all right, if all 

 species could be referred to one genus. This is however hardly the case; the type 

 of the genus Luzuriaga is L. radicans Ruiz. et Pav., and Enargea marginata and 

 polyphylla (Hook.) F. v. M. {Luzuriaga erecta Kunth) belong to another, for which 

 I use the oldest name. Ås to the differences between the genera I ref er to Natiirl. 

 Pflanzenfam. 



92. E. marginatji (G^RTN.) Benth. and HooK. (Callixene marginata Juss.) 

 See Feuerl. Bliiten, p. 28. SelfpoUination may occur in spite of the style being 

 considerably longer than the stamens, as the flowers are ± pendulous. I ha ve never 

 seen honey, but the perianth is scented. Often found as late as in December with 

 berries from the preceding year. — Common in the heath, on the quartzite ridges 

 and between the blocks in the stoneruns, wliere the creeping stem attains a lengtli 

 of several feet. — Fuegia, Staaten I., in forests. 



Iridacese. 



Sisyriiicliiuin Tourn. 



12. S. niifoliiim Gaud. (S. fihforme Gaud. Freyc. Voy. Bot. p. 421.) 

 HooKER (Fl. ant. p. 352) describes and figures this species as having the fila- 

 ments free nearly to their base. However, in all flowers I have seen, they are 

 connected in a tube V2 — ^/s of their entire length. I do not know how I shall 

 explain this difference, that is easily noted by comparing my figure 4 on pl. I with 

 Hooker's, The plates in Fl. ant. are generally excellent — can it be, that the par- 

 ticular figure was drawn from Port Gregory-specimens and that they belong to 

 another species? This is of a certain importance, as the character in question is 

 used to distinguish the different sections; Pax in Natiirl. Pflanzenfam. brings S. fili- 

 folium to sect. Nuno, besides its oiily including S. Nuno; after what I have seen 



