NOTES ON ACACIA. 243 



-calyx is two-thirds as long as the corolla. la A. strongy- 

 lophylla also, the phyllode is less triangular or trapeziform, 

 And has only one main nerve. 



At the same time it seems to me that in habit of the 

 plant, in the presence of stipular spines, and prominent 

 mucrones, in the general shape of the phyllodes, the new 

 species presents an obviously very close affinity to A. 

 strongyloph ylla. 



Mueller (Fragm. viii, 227) hesitated about the position 

 of A. strongylophylla. He placed it in the neighbourhood 

 of A. idiomorpha A. Cunn., A. pyrifolia DC, A, anceps DC, 

 all of which belong to the Series Uninerves, but to the 

 Sub-series Armatae, Racemosse, Brevifoliae respectively. I 

 have already suggested that the place of A. Rendlei is with 

 the Sub-series Triangulares. 



2. With A. dilatata Benth. In this Sub-series it exhibits 

 obviously close affinity to A, dilatata, in the shape, size 

 and venation of the phyllodes and in the pungent mucrones. 

 A. dilatata differs in the comparative fewness and small 

 size of the spinescent stipules, and in the hispid covering. 

 The flowers of A. dilatata are hispid all over (not the calyx 

 only, as in A. Rendlei), and the calyx is half as long as the 

 corolla. 



3. With A. Luehmanni P.v.M. There is a general 

 similarity in regard to the phyllodes of the two species 

 which is drawn attention to as matter of convenience. The 

 stipular spines are quite small and the structure of the 

 flowers is quite different. The phyllodes are plurinerved, 

 that is to say, one is (or occasionally two are) not dominant, 

 as in uninerved species. 



The placing of A, Luehmanni P.v.M. in the Pluriuerves 

 (Triangulares) draws attention to the fact that the boundary 

 line between that Series and the Uninerves (Triangulares) 

 •rests on minor and not larger details. The Series of 



