ACACIA SEEDLINGS. 149 



These examples suggest the idea that the first pair of 

 pinnae of a bipinnate leaf correspond with the basal rather 

 than the apical pair of leaflets of the first or simply pinnate 

 leaf. 



Glands, Nectaries or Vents. 



The small processes known as glands, nectaries or vents 

 which occur on the upper edge of many mature Acacia 

 leaves have been observed also on those of seedlings. 1 In 

 connection with phyllodineous Acacias it is found that 

 glands may sometimes occur on the first or simply pinnate 

 leaf, and on all or most of the bipinnate leaves of certain 

 species, but are absent from other species. They may 

 occur on the bipinnate leaves but be absent from the simply 

 pinnate leaf. 



Bentham has divided the phyllodineous Acacias into eight 

 Series, (B. PI., 303), as follows: — Alatae, Continue, Pun- 

 gentes, Oalamiformes, Brunioidese, Uninerves, Plurinerves, 

 Juliflorse. So far as the present investigations have gone, 

 glands have not been noticed on seedlings of Series 1 to 3,' 

 and faint ones have been only rarely seen on Series 4 and 5, 

 but they are most plentiful on seedlings of No. 6, Uninerves, 

 and are chiefly on leaves of the Racemosse section of that 

 Series. They may also occur on the bipinnate leaves of 

 Nos. 7 and 8, but are not nearly so large or definite as those 

 on leaves of the Uninerves. This distribution agrees very 

 well with that noticed by other writers on the adult foliage. 



Glands have been noticed on the first or pinnate leaf, as 

 well as on all or most of the bipinnate leaves of Acacia 

 accola, A. Bancrofti, A. Hnifolia, A. penninervis var. 

 falciformis, A. podalyricefolia, and A. Westoni Maiden 

 (in MS.). 



1 See "The distribution of leaf glands in some Victorian Acacias/' by 

 A. D. Hardy, f.l.s., Vict. Nat. xxix, 26. Also "Observations on the 

 function of Acacia leaf glands," by Reginald Kelly, 16., xxx, 121. Also 

 "Notes on Acacia," by J. H. Maiden, f.r.s., this Journ., xlix, 465. 



