474 J. H. MAIDEN. 



Mr. Cambage informs me that in going south from Nowra, 

 the Black Wattle is first met with by the roadside at about 

 seventeen miles north of Milton. Around Milton this 

 species avoids the most basic soils and grows on a sandy 

 soil which is mixed with a better soil, but does not occur on 

 the poor, highly siliceous Permo-Oarboniferous formation. 



I constitute the Milton specimens type of the new 



species, which is named in honor of my young friend Miss 



Mabel Fanny Oambage. The naming of a wattle after her 



is appropriate, because she is Honorary Treasurer of the 



New South Wales Branch of the Wattle Day League in 



connection with which she has done admirable service, and 



this particular wattle has associations for her in that many 



specimens occur on the South Coast property of her grand 



parents. 



Affinities. 



This wattle belongs to the series Uninerves and the long 

 sub-series Racemosae. Because of the general similarity 

 of the structure of the flowers, Acacia Mabellce has hitherto 

 been assumed to be a form of A. penninervis; the seed and 

 seedling show that it is not closely related to that species. 

 From the point of view of the seed, with its encircling 

 funicle, its affinity must be sought for near A. retinodes 

 Schlecht., and A. rubida A. Oann. 



1. With A. retinodes Schlecht. The phyllodes of the 

 new species are longer, the marginal veins more marked, 

 and the lateral veins different. The lateral veins in A. 

 retinodes (a Victorian and South Australian species) are 

 more or less parallel to the mid-rib; in A, Mabellce they 

 are attached to the midrib at an acute angle. 



The flowers of the new species are fewer in the head and 

 are more squat than those of A. retinodes, which also have 

 the tips of the petals recurved and the pedicels glabrous. 

 The rhachises of the inflorescence are without the golden 

 yellow pubescence to be seen in A. Mabellce. 



