186 president's address — section d. 



At page 84 we have the so-called " Spinifex," but more correctly 

 the " Porcupine Grass " {Triodia). On the rocks (p. 83), Ficus, 

 Acacias, and Gastrolobium grew. Round the base fine trees of Acacia 

 salicina, with kangaroo grass 6ft. in height. 



At page 98 is a new grass tree (X author rhoea Thorntoni), and 

 notes on Sivainsona canescens, Goodenia Horniana, Prostanthera, 

 Eremophilas, kurrajong, mallee gum, and Acacia dictyophleba are found 

 at page 99. 



Then we have a summary of the zoological, botanica], and geo- 

 logical results of the expedition, pp. 139-198, by Professor Spencer. 

 The botanical simimary, pp. 159-162, is valuable ; see also the general 

 conclusions at page 171. 



" The list of plants recorded by Professor Tate numbers 611. 

 Prior to the expedition the number described from the region was 502. 

 The additions consist of eight new species ; 16 species new for South 

 Australia, and 112 species new to the region." 



Tate's central Eremian district stretches south from about the 

 latitude of Engoordina (Horseshoe Bend), on the Finke, and formed 

 by the Cretaceous tableland. " The latter area is practically the same 

 as that referred to in the narrative as the Lower Steppes, the Larapin- 

 tine region being comprised within the Higher Steppes." (See also 

 Tate's definitions of the boundaries of the Larapintine region as a 

 botanical area at pp. 117-8). 



Part III. includes a report on the botany of the expedition (pp. 117- 

 194), by Professor Tate. 



In the summary I have just referred to Professor Tate's work. 

 To show the scope of his report, let me quote the table of contents : — 

 " Chapter I. — The Larapintine flora. 



" 1. General physiography and boundaries of the Larapin- 

 tine region. 

 " 2. Botanical characteristics, 

 (a) Introduction. 



(h) Salient botanic features of the north Eremian region. 

 {(■) The lowland vegetation. 

 (d) The saxatile vegetation. 

 " 3. Origin of the flora. 

 " 4. Previous explorations. 



" 5. Enumeration of the flowering plants and vascular crypto- 

 gams. 

 " 6. Diagnoses of new genus and species. 

 " Chapter II. — The Central Eremian flora. 



" 1. Physiographic and botanic characteristics. 

 " 2. List of plants new or rare in the region." 

 Professor Tate's report will not bear abridgment. It is a valuable 

 record, not only of his own discoveries, but also of previous botanical 

 collectors in the same region. 



In fine, the report of the Horn Expedition is the latest and most 

 comprehensive account of the flora of Central Australia. It is a classic. 



