378 



Koch's. The ripe seed is black, glossy, ovoid-oblong, sub- 

 compressed, 5 mm. long. Now that it is known that the 

 inflorescence is frequently racemose, this species seems related 

 to A. retinodes, Schlecht., of which it has the calyx, but not 

 the glabrous petals; the see-d is very similar, but the pod is 

 different and the phyllodes are narrower and shorter, with 

 the marginal gland much further removed from the base. 



Acacia estrofhiolata, F, v. M. Alberga River; flowering 

 August, 1920 (H. W. Andrew; Dist. C). Phyllodes linear- 

 lanceolate, rather thick, 3-5 cm. long, faintly or distinctly 

 3-nerved, 2-4 mm. broad; the phyllodes on the barren branches 

 longer. A tree about 15 m. high, the butt nearly 1 m. in 

 diamet-er; locally known as ''Ironwood." The type came 

 from the Finke River, ISforthern Territory. Specimens were 

 collected by R. Helms on the Arkaringa Creek, South Aus- 

 tralia, in the Elder Expedition of 1891. 



Myoporaceae. 

 Er-emophila neglecta, J. M. Black. Copley Hill, between 

 Oodnadatta and Todmorden Station (H. W. Andrew). 



COMPOSITAE. 



Pterigeron cylindriceps^ J. M. Black. Alberga River, 

 near Todmorden Station (H. W. Andrew). These are the 

 first complete specimens obtained, and show the plant to be 

 a herb, 8-20 cm. high, with several ascending or procumbent 

 stems, which are branched in the upper part. The outer 

 involucral bracts are dark purple. The type was collected 

 near the Everard Range, about 100 miles further west. 



DESCRIPTION OF PLATES. 

 Plate XXII. 

 Acacia prolifera, n. sp. 1, flowering branch. 2, summit of 

 phyllcde. 3, transverse section of phyllode. 4, lower part of 

 phj'llode. 5, flower. 6, pistil. 7, bracteole. 



Plate XXIII. 



Acacia salicina, Lindl. 1, fruiting branch with pod; from 

 Gladstone, South Australia. 2, phyllode. 3, lower end of 

 phyllode, showing the smooth, swollen base. 4, flower. 5, seed 

 and funicle ; a, point at which the funicle is attached to the 

 placenta. ' 



Acacia ligulata, A. Cunn. 6, flowering branch; from Ooldea. 

 7, lower end of phyllode, showing the wrinkled, almost cylindrical 

 base. 8, flower. 9, pod; from Ooldea. 10, pod; from Kingscote, 

 K.I. This is the form which Mr. Maiden distinguished as A. 

 salicina, var. Wayae^ but the transitional forms between the 

 moniliform pod and that which is but slightly constricted between 

 the seeds are so numerous and complete that I do not see how 

 var. Wayae can be maintained. 11, seed and funicle; a, point 

 of attachment to placenta. 



