132 ON" THE RELATIONS OF THE BRISBANE FLORA, 



2. The " Brigalow Scrub " extends over the elevated sandstone 

 plains west of the Coast Range in East Australia, as far as 

 Newcastle Range, (Lat. 18° to 20°). This is also a very varied 

 vegetation, chiefly of small trees and shrubs of Gapparidoz, 

 Pittosporidcs, Bauhinicd, Sterculiacece . Here Delabechia and 

 Br achy chiton, form a remarkably secondary feature ; distinguished 

 as the Bottle-tree Scrub, from their tumid trunks. This vegetation 

 extends from the Burdekin to Upper Darling Rivers, and ceases 

 somewhere about the Lower Barcoo country. 



3. Open downs of basalt, nearly destitute of trees, except along 

 the watercourses. The vegetation is chiefly herbaceous and much 

 of it is annual ; the soil is rich, and after the rains produces a 

 luxuriant crop of excellent grass and herbaceous plants. 



4. The desert presents various assemblages of plants according 

 as the soil is saline, clay or sand, but the plants are almost the 

 same as those of extratropical Australia, with the exception of 

 various species of Portulacca, Solarium, Euphorbia, Cassia, Gomphrena, 

 Ptilotus, Trianthema, Aylmeria, and other ParonycMece. 



5. The sandstone tableland presents an arid, cheerless landscape 

 described by the learned Baron in terms, says Dr. Hooker, which 

 apply perfectly well to the sandstone tablelands of the peninsula 

 of India, and indeed many of the characteristic genera are common 

 to both. These consist of Terminalia, Melia, Cochlospermum, 

 Sterculia, Buchanania, Zizyphus, Nauclea, Bauhinia, Indigofera, 

 Erytlirina, Gardenia, Strychnos, Santalum, a profusion of 

 Andropogoneous grasses and other shrubs and herbs, all of which 

 the Indian botanist recognizes at once as the prominent features 

 of the sandstone ranges of Western Bengal and Central India. 



6. The sea coasts are chiefly tenanted by an Indian vegetation 

 consisting of Avicennice, Rhizophorece,, Pandancce, Spinifex, Loysia, 

 Surinna, JEgiceras, Pemphis, Tribidus, together with Colubrina, 

 Iapomcea, &c." 



Baron v. Mueller has also stated that nearly 250 of the sj^ecies 

 occurring in the Colony of Victoria extend north of the latitude 



