SCHOUW'S PHYTO-GEOGEAPHIC EEGIONS. 689 



reulia stolonifera, Lagenophora Ooramersoni, Gnaphalium pyramidale, 

 Phylica arborea, the tree of the islands, which sometimes attains a 

 height of 20 feet, with a diameter of 12-18 inches; Chenopodium 

 tomentosum, known as the tea plant, having strongly-scented leaves, 

 of which a decoction is made and drunk with milk and sugar ; Pelar- 

 gonium australe var, acugnaticum, Empetrum medium, Acsena San- 

 guisorba, B[ydrocotyle capitata, Carex insularis, Spartina arundinacea, 

 Dactylis csespitosa (Tussac-grass), Lomaria magellanica (robusta), L. 

 alpina, L. Boryana, Lycopodium insulare. Mean temperature, 41° to 

 46° F. No cultivation. 



23. The Eegion of Mesembryanthema and Stapelise, South African 

 Flora (Thunberg's Region). — These two genera, as well as the Ericese 

 (Heaths), are very abundant. The latter famUy is found in greater 

 quantity here than anywhere else. The region embraces the southern 

 extremity of Africa, from the tropic of Capricorn to the Cape Coast 

 Iridacese, Pelargoniums, Aloinese, Bruniacese, and Selaginacese, and 

 various G-naphaliums and Helichrysums, occur in this region. Pachy- 

 lepis cupressoides and P. juniperoides are Cape Conifers. Thalictrum 

 caffrorum and Conium africanum are South African species. On 

 Table Mountain at the Cape, peculiar species of Disa are found. 

 Many European grains and fruits are in cultivation along with Sor- 

 ghum caflfrorum and Convolvulus Batatas. In Natal, where the moun- 

 tains rise to nearly 10,000 feet, Krauss distinguishes a coast or forest 

 region where species of Rhizophora, Avicennia, Ficus, Tabernsemontana, 

 Zygia, and Phcenix reclinata, are found ; a hilly pasture region, with 

 species of Acacia, Aloe, Euphorbia, Andropogon, and tropical Legu- 

 minosse, Labiatse, Acanthacese, and Scrophulariaoese ; a mountainous 

 region with species of Podocarpus, Ixia, Hypoxia, Watsonia, also 

 Ferns, Oyperafeese, Orchids, Proteacese, and Geraniacese. Mean 

 temperature, 54° to 73° F. Cultivated plants : European kinds of 

 grain, fruit, and vegetables; also Batatas, Plantains, Tamarind, 

 Guava, and Shaddock. 



24. The Region of Epaoridacese and Eucalypti, or Australian 

 Flora (R. Brown's Region). — It comprehends the temperate parts of 

 Australia beyond the tropics, with the Island of Tasmania or Van 

 Diemen's Land. Besides the plants whence it receives its name, it is 

 characterised by the orders Stackhousiaoese and Tremandraceae, and 

 by the presence of a great number of Proteacese, Myrtacese, Sty- 

 Miacese, Restiacese, Diosmese, Casuarinese, and Acacias. Araucaria 

 (Eutassa) excelsa, the Norfolk Island Pine, forms one of the features 

 of the region. It is one of the most peculiar Floras, but the vegetar 

 tion is not profuse; the number of Australian species is probably 

 10 000 Baron von Mueller makes the following observations on the 



2 y 



