BY J. H. MAIDEN AND E. BETCHE. 147 



Park. Acacia BaueH was originally described from specimens 

 obtained from North Australia, and very few localities (including 

 Richmond River and Hunter River) are recorded between the 

 JN^orth Coast of Australia and Port Jackson. 



GRAMINE^. 

 Eriachne obtusa, R. Br. 



Collected in May, 1897, by Mr. W. Forsyth near Rose Bay. 

 It is an almost glabrous form, with no woolly hairs on the base 

 of the stem as in the desert forms; the outer glumes are quite 

 glabrous, and the hairs on the flowering glumes are shorter and 

 more appressed than in the typical form. The species has been 

 previously recorded only, as regards New South Wales, from the 

 western districts, though it is found in Queensland near the coast. 



The belt of low land extending from Rose Bay to the sandhills 

 of Bondi from which Acacia Baueri and Eriaclme ohtusa have 

 been obtained, is also the habitat of the rare DodoncBa Jilifolia, 

 Hook., (already recorded as a Port Jackson plant in Moore & 

 Betche's Sandhooh oftheFloraofJS'.S. Wales). It is a remarkable 

 fact that these three northern plants have been found in such 

 close proximity to each other, and this seems to indicate that they 

 are the survivors of a time in which northern plants extended 

 further south than at the present day. 



Dodonaea Jilifolia was, previously to its discovery n6ar Rose 

 Bay, only recorded from Queensland, but it is closely allied to the 

 Tasmanian D. ericifolia, G. Don, and the common ancestral 

 form of the two species extended probably along the whole East 

 coast of Australia, our Port Jackson plants being apparently the 



.sole survivors in N.S. Wales and Victoria, and the connecting 

 link between the Tasmanian Z), ericifolia and the Queensland Z>. 



Jilifolia. The Port Jackson specimens are distinguished from 

 Major Mitchell's, Dr. Leichhardt's, and other Queensland 

 .specimens in the Herbarium of the Botanic Gardens, by shorter, 

 broader, more curved and crowded leaves, as well as by the shorter 



