158 R. H. CAMBAGE. 



la one case the position usually taken by the second 

 pinna was occupied by a single leaflet. 



Nos.3and 4. Abruptly bipinnate, petiole 8 mm. to 2*3 cm., 

 vertically dilated in No. 3 to 1 mm. broad, and in No. 4, in 

 convex form on the upper side of a strong nerve, from 2 to 

 6 mm. broad, pilose to hirsute, with gland in both cases at 

 or below the middle on upper margin, No. 4 may sometimes 

 have a second or upper and finer nerve confluent at both 

 ends with the lower; leaflets five to eight pairs in No. 3, 

 seven to nine pairs in No. 4, oblong-acuminate, mucronate; 

 rachis 6 mm. to 1*2 cm., pilose, excurrent; stipules as in 

 No. 2. 



No. 5. This may be a phyllode, or bipinnate, petiole 3 

 to 3*8 cm., vertically dilated up to l'l cm, broad, midrib 

 below the centre, with two or three finer nerves above 

 though not all being confluent with the midrib at the apex, 

 also a finer vein below the midrib but scarcely confluent 

 with it, gland towards the base, the whole petiole being 

 pilose to hispid, particularly along the margins; leaflets up 

 to nine pairs. 



Nos. 6 to 8. Phyllodes, similar to the dilated petiole of 

 No. 5, pilose. 



Phyllodes on a plant two feet high are glabrous, and the 

 gland is either absent or very inconspicuous. Although 

 the phyllode has about three to five nerves, the central one 

 is the most prominent, and its evolution can be traced, as 

 in similar cases, from the strong nerve which appeared 

 first on the lower edge of the petioles of the bipinnate 

 leaves. 



Juliflor^e— (Rigid ulse). 

 Acacia Ohisholmi Bailey. 1 Seeds from Prairie, Tropical 



Queensland, (J. O. Chisholm). (Plate IX, Numbers 4 



to 6). 



1 Queensland Agric. Journ., IV, Part 1. 



