Campbell's Islands.] FLORA ANTARCTICA. 53 



South Pacific Ocean is hence a remarkable circumstance, and probably in some measure to be accounted for 

 by the uniform temperature which the New Zealand Islands possess ; they further there bear a larger proportion 

 to the other dicotyledonous vegetation than they do in any other part of the globe. I have alluded to the 

 S. divaricata having a considerable range in latitude, a circumstance not without parallel in the order to 

 which it belongs. Of this M. Africana, L. is an extreme instance, that plant being found both at the Cape of 

 Good Hope, in Abyssinia, and in the Azores Islands. The species of the Natural Order are however, as M. A. 

 DeCandolle well remarks (Linn. Trans, vol. xvii. p. 99), very confined as regards their geographical limits, 

 MelastomacecB and Myrtaceos being two of the very few groups containing about the same or a greater number 

 of species which are more so. 



Plate XXXIV. Fig. 1, a flower; fig. 2, the same laid open ; fig. 3, a petal and stamen ; fig. 4, a flower 

 with the germen more advanced ; figs. 5, 6 and 7, various forms of stigmata ; fig. 8, half-ripe berry ; fig. 9, lon- 

 gitudinal section of the same; fig. 10, placenta and young seed ; fig. 11, the same cut open longitudinally ; 

 fig. 12, young seed; fig. 13, ripe berry; fig. 14, longitudinal section of the same; fig. 15, seed covered with the 

 shrivelled remains of the placenta; fig. 16, seed removed from do. ; fig. 17, longitudinal section of seed showing 

 the embryo ; fig. 18, embryo removed : — all magnified. 



XX. GENTIANE^, Juss. 



1. Gentiana (Antarctophila, Griseb.) concinna, Hook. fil. ; annua, caule breviusculo ramoso, 

 ramis teretibus suberectis v. patulis foliosis, foliis coriaceis elongato-spathulatis obtusis marginibus 

 minutissime serrulatis, floribus confertis paniculatis inter folia sessilibus v. brevissime pedunculatis, 

 segmentis calycinis linearibus corolla ^ brevioribus, corolla campanulata limbi lobis obovato-oblongis 

 obtusis albidis rubro pictis, glandulis fauce corolla; 5 orbiculatis subdepressis, antheris post anthesin 

 extrorsis. (Tab. XXXV.) 



Var. ft. elonguta ; caule ascendente spithameo vage ramoso, foliis majoribus subtus 3-costatis, floribus albidis 

 rubro-purpureo pictis. 



Var. y. robusta ; caule erecto crasso simplici v. ramoso, foliis lanceolatis obtusis subtus 3-5-costatis. 

 Hab. Lord Auckland's group ; on the bleak and exposed faces of the mountains. (3. amongst 

 rocks and in sheltered situations on the tops of the hills. 7. Campbell's Island ; on the hills, abun- 

 dant. 



Radix simplex, elongato-fusiformis, 1-2 unc. longa, descendeus, hinc illinc fibrosa, ssepe multiceps, intus 

 lutea, sapore amaro. Caules solitarii v. plures, perbreves, erecti, 1^-3 uncias longi, nunc ex ima basi dichotome 

 ramosi, rarius solitarii, inferne simplices, elongati, superne fastigiatim ramosi. Rami abbreviati, rarius 1-2 

 uncias longi v. ultra, erecti, teretes, foliosi, crassitie pennae passerinae, superne et ramuli laterales floriferi. 

 Folia inferiora seu radicalia conferta, plerumque stellatim patentia, rarius laxa et suberecta v. stricta, ssepius 

 plus minusve recurva, elongato-spathulata, in petiolum gradatim attenuata, latitudine varia, f-1 unc. longa, supra 

 medium 4 lin. lata, coriacea, marginibus recurvis, sub lente minutissime cartilagineo-serrulatis, medio uniner- 

 via, et nervis duobus lateralibus interdum obsoletis, superne convexiuscula, canaliculata, subtus costa elevata, 

 lsete flavo-viridia, fusco purpureove picta, siccitate corrugata ; folia caulina breviora ; petiolus latiusculus, mar- 

 ginibus basi membranaceis. Inflorescentia paniculata, sed ramis valde abbreviatis, foliosis, foliis superioribus 

 multoties brevioribus, ita ut flores videantur glomerati, paucique inter folia summa sunt solitarii. Calyx 5-fidus, 

 tubo brevi, obconico, segmentis lineari-oblongis, obtusis, coriaceis, dorso subacutis, corolla ^ brevioribus, viridibus. 



