Bibliographical Notices. 59 



given, " not from the colour of the under surface of the leaves, 



vs^hich is nearly white, but from the numerous orange-coloured 



racemes rendering this tree conspicuous at a great distance." 

 Grevillea {Plagiopoda) neglect a, n. s. 

 Grevillea {Cycloptera) lineata, n. s. near G. striata. 

 Ptilotus lati/olius, n. s. A similar remark might be made on this 



generic name to those two already given. 

 Neurachne paradoxa, n. s. 



We have dwelt on this paper at greater length than usual, for in 

 it are far more than " veteris vestigia flammae." We extract an in- 

 teresting passage supplemental to some observations of Dr. Brown's 

 published in 1814 in the Botanical Appendix to Captain Flinders's 

 Voyage. 



•' From the knowledge I then had of New Holland, or Australian 

 vegetation, I stated that its chief peculiarities existed in the greatest 

 degree in a parallel included between 33° and 35° S. lat., which I 

 therefore called the principal parallel, but that these peculiarities or 

 characteristic tribes were found chiefly at its western and eastern 

 extremities, being remarkably diminished in that intermediate por- 

 tion included between 133° and 138° E. long. These observations 

 related entirely to the shores of Australia, its interior being at that 

 period altogether unknown ; and the species of Australian plants 

 with which I was then acquainted did not exceed 4200. Since that 

 time great additions have been made to the number, chiefly by Mr. 

 Allan Cunningham, in his various journeys from Port Jackson, and 

 on the shores of the north and north-west coasts during the voyages 

 of Captain King, whom he accompanied ; by Messrs. William Baxter, 

 James Drummond, and M. Preiss, at the western extremity of the 

 principal parallel ; and by Mr. Ronald Gunn, in Van Diemen's Land. 

 It is probable that I may be considered as underrating these addi- 

 tions, when I venture to state them as only between two and three 

 thousand, and that the whole number of Australian plants at pre- 

 sent known does not exceed, but rather falls short of, 7000 species. 



"These additions, whatever their amount may be, confirm my ori- 

 ginal statement respecting the distribution of the characteristic tribes 

 of the New Holland flora ; some additional breadth might perhaps 

 be given to the principal parallel, and the extent of the peculiar fa- 

 milies may now be stated as much greater at or near its western 

 than at its eastern extremity. 



" With the vegetation of the extra-tropical interior of Australia, we 

 are now in some degree acquainted, chiefly from the collections formed 

 by the late Mr. Allan Cunningham, and Charles Fraser, in Oxley's 

 two expeditions from Port Jackson into the western interior, in 1817 

 and 1818; from Captain Sturt's early expeditions, in which the 

 rivers Darling, Murrumbidgee, and Murray, were discovered ; from 

 those of Sir Thomas Mitchell, who never failed to form extensive 

 collections of plants of the regions he visited ; and lastly, from Cap- 

 tain Sturt's present collection. 



" The whole number of plants collected in these various expedi- 

 tions may be estimated at about 700 or 750 species ; and the gene- 



