Schow's Essay on Botanical Geography. 373 



XI. (Regnum Composiiarum arborescentium.) Includes Buenos Ayres, 

 and, in general, the eastern side of the temperate part of South America. 

 It has been already remarked, that the Flora of this part of the earth, in a 

 considerable degree, agrees with that of Europe ; among 109 genera, 70 

 are likewise found in Europe, 85 in the North Temperate Zone ; on the 

 other hand, it differs considerably from the Floras of the Cape, and of 

 New Holland, for Proteacece, Epacridece, Ericacece, Iridcce, Ficoidew, 

 Geranitw, Myrlinew, Mimosew, are either entirely wanting, or occur but 

 sparingly. It is also very different from the Flora which is found on the 

 west coast of America ; for, amongst the 109 genera mentioned, only 35 

 are found in Chili. The characteristic of this region appears to be the 

 great number of the arborescent Syngenesis (particularly of the subfamily 

 Boopidew,) which, however, do not exclusively belong to this region, but 

 are also found in Chili, and at the Cape. I have hence taken the name, 

 though a more intimate acquaintance with this Flora, at present so little 

 known, may perhaps oblige us to change it. 



XII. (Regnum Antarcticum.) Includes the countries near the Straits 

 of Magelhan. The vegetation here also approaches very near that which 

 is found in the north Temperate Zone ; for, amongst 82 known genera 

 from thence, 59 have also species in the northern hemisphere ; the 

 northern Polar forms even show themselves, such as Caricece, Saxifragece, 

 Gentianece, Arbutus, Primula. Some resemblance to the Highlands of 

 South America, and to Chili, is shown in the genera Calceolaria, Ourisia, 

 Baa, Bolax, Wintera, Escallonia ; to the Cape, in the genera, Gladiolus, 

 Witsena, Gunnera, Ancistrum, Oxalis ; to New Holland, in Proteacece, 

 Mniarum. The characteristic forms I dare not determine ; but as most 

 of the species known from hence, and some of the genera, are peculiar, so 

 it ought certainly to form a distinct region. 



XIII. (Regnum Novw Zeelandice.) Well deserves, on similar grounds, 

 to be a separate region, although its vegetation is a mixture of that which 

 is found on the three nearest continents, South America, South Africa, 

 and New Holland. It has, in common with South America, Ancistrum, 

 Weinmannia, W inter a ; with South Africa, Mcsembryanthcmum, Gnupha- 

 lium, Xeranthemum, Tetragonia, Oxalis, Passerina ; with New Holland, 

 Epacris, Melaleuca, Myoporum ; with both the latter, the families Pro- 

 teacece and Kestiucew ; several species are also in common, both with New 

 Holland and Van Diemen's Land, for instance, Mniarum biflorum, Samo- 

 lus littoralis, Gentiana montuna ; the first is also found in the Straits of 

 Magelhan. 



XIV. (Regnum Epacridearum et Eucalyplorum.) Includes the tem- 

 perate part of New Holland, together with Van Diemen's Land. This 

 region is very marked ; the families Stackhptuew and Tremendrea:, arc 

 quite peculiar to New Holland ; Ejxicridea: nearly so; Proteacew, Acacia 

 aphyUa, and the great number of Myrtinea (especially of the genera 

 Eucalyptus, Lcpiospermum, Melaleuca) Stylidew, Restiaceve, Casuarinew, 



