BY BARON VON MUELLER AND J. H. MAIDEN. 15 



available for comparison, though the plant has farther been 

 collected in New England by the late Rev. R. Collie, F.L.S. 



From A. cardiophylla, which is now also known from the 

 vicinity of the Lachlan River through Mr, J. Duff*, A. Jonesii 

 deviates in leaflets seemingly never puberulous, evidently longer 

 hut proportionately narrower and forming longer pinnules, in 

 calyces neither deeply lobed nor ciliolated, and again the carpologic 

 comparisons in this instance cannot yet be fully carried out. 

 Finally there should still be alluded to a resemblance of A. 

 decurreyis in its variety paztci/zt^a from far inland regions ; but 

 the branchlets of our new species are not angular, the petioles are 

 very short, the leaflets pointed, darker green, more concave and 

 less slender, the inflorescence less compound and the fruits smaller. 

 The A. decurrens var. Leichhardtii (Benth. Fl. Austral. II., 415) 

 has, however, to be raised to specific rank, as it is distinct both 

 from A. decu7'7'ens and A. pubescens. The late Mr. J. O'Shanesy 

 sent it from the environs of Wide Bay, Queensland, but also in an 

 imperfect state; it has received the name of A. O^Shanesii. 



This dwarf floriferous and pretty Acacia, well worthy of a place 

 in gardens, is named in honour of Dr. Sydney Jones, President of 

 the Australasian Medical Congress at Sydney, whose distinguished 

 reputation is only equalled by his munificence in the cause of 

 medical science. 



EXPLANATION OF PLATE II. 



Acacia Jonesii. 



1. Flowering twig, 



2. Flower-bud. 



3. Expanded flower. 



4. Front and back view of stamens. 



5. Ovulary. 



6. Ripe pod. 



7. Seed. 



8. Leaf-rachis, showing glandules. 



9. Portion of a phyllode. 



(All enlarged, but to various extent, except 1 and 6.) 



